text: //! moment.js
  
  ;
  (function (global, factory) {
  	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  		typeof define === 'function' && define.amd ? define(factory) :
  		global.moment = factory()
  }(this, (function () {
  	'use strict';
  
  	var hookCallback;
  
  	function hooks() {
  		return hookCallback.apply(null, arguments);
  	}
  
  	// This is done to register the method called with moment()
  	// without creating circular dependencies.
  	function setHookCallback(callback) {
  		hookCallback = callback;
  	}
  
  	function isArray(input) {
  		return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
  	}
  
  	function isObject(input) {
  		// IE8 will treat undefined and null as object if it wasn't for
  		// input != null
  		return input != null && Object.prototype.toString.call(input) === '[object Object]';
  	}
  
  	function isObjectEmpty(obj) {
  		if (Object.getOwnPropertyNames) {
  			return (Object.getOwnPropertyNames(obj).length === 0);
  		} else {
  			var k;
  			for (k in obj) {
  				if (obj.hasOwnProperty(k)) {
  					return false;
  				}
  			}
  			return true;
  		}
  	}
  
  	function isUndefined(input) {
  		return input === void 0;
  	}
  
  	function isNumber(input) {
  		return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
  	}
  
  	function isDate(input) {
  		return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
  	}
  
  	function map(arr, fn) {
  		var res = [],
  			i;
  		for (i = 0; i < arr.length; ++i) {
  			res.push(fn(arr[i], i));
  		}
  		return res;
  	}
  
  	function hasOwnProp(a, b) {
  		return Object.prototype.hasOwnProperty.call(a, b);
  	}
  
  	function extend(a, b) {
  		for (var i in b) {
  			if (hasOwnProp(b, i)) {
  				a[i] = b[i];
  			}
  		}
  
  		if (hasOwnProp(b, 'toString')) {
  			a.toString = b.toString;
  		}
  
  		if (hasOwnProp(b, 'valueOf')) {
  			a.valueOf = b.valueOf;
  		}
  
  		return a;
  	}
  
  	function createUTC(input, format, locale, strict) {
  		return createLocalOrUTC(input, format, locale, strict, true).utc();
  	}
  
  	function defaultParsingFlags() {
  		// We need to deep clone this object.
  		return {
  			empty: false,
  			unusedTokens: [],
  			unusedInput: [],
  			overflow: -2,
  			charsLeftOver: 0,
  			nullInput: false,
  			invalidMonth: null,
  			invalidFormat: false,
  			userInvalidated: false,
  			iso: false,
  			parsedDateParts: [],
  			meridiem: null,
  			rfc2822: false,
  			weekdayMismatch: false
  		};
  	}
  
  	function getParsingFlags(m) {
  		if (m._pf == null) {
  			m._pf = defaultParsingFlags();
  		}
  		return m._pf;
  	}
  
  	var some;
  	if (Array.prototype.some) {
  		some = Array.prototype.some;
  	} else {
  		some = function (fun) {
  			var t = Object(this);
  			var len = t.length >>> 0;
  
  			for (var i = 0; i < len; i++) {
  				if (i in t && fun.call(this, t[i], i, t)) {
  					return true;
  				}
  			}
  
  			return false;
  		};
  	}
  
  	function isValid(m) {
  		if (m._isValid == null) {
  			var flags = getParsingFlags(m);
  			var parsedParts = some.call(flags.parsedDateParts, function (i) {
  				return i != null;
  			});
  			var isNowValid = !isNaN(m._d.getTime()) &&
  				flags.overflow < 0 &&
  				!flags.empty &&
  				!flags.invalidMonth &&
  				!flags.invalidWeekday &&
  				!flags.weekdayMismatch &&
  				!flags.nullInput &&
  				!flags.invalidFormat &&
  				!flags.userInvalidated &&
  				(!flags.meridiem || (flags.meridiem && parsedParts));
  
  			if (m._strict) {
  				isNowValid = isNowValid &&
  					flags.charsLeftOver === 0 &&
  					flags.unusedTokens.length === 0 &&
  					flags.bigHour === undefined;
  			}
  
  			if (Object.isFrozen == null || !Object.isFrozen(m)) {
  				m._isValid = isNowValid;
  			} else {
  				return isNowValid;
  			}
  		}
  		return m._isValid;
  	}
  
  	function createInvalid(flags) {
  		var m = createUTC(NaN);
  		if (flags != null) {
  			extend(getParsingFlags(m), flags);
  		} else {
  			getParsingFlags(m).userInvalidated = true;
  		}
  
  		return m;
  	}
  
  	// Plugins that add properties should also add the key here (null value),
  	// so we can properly clone ourselves.
  	var momentProperties = hooks.momentProperties = [];
  
  	function copyConfig(to, from) {
  		var i, prop, val;
  
  		if (!isUndefined(from._isAMomentObject)) {
  			to._isAMomentObject = from._isAMomentObject;
  		}
  		if (!isUndefined(from._i)) {
  			to._i = from._i;
  		}
  		if (!isUndefined(from._f)) {
  			to._f = from._f;
  		}
  		if (!isUndefined(from._l)) {
  			to._l = from._l;
  		}
  		if (!isUndefined(from._strict)) {
  			to._strict = from._strict;
  		}
  		if (!isUndefined(from._tzm)) {
  			to._tzm = from._tzm;
  		}
  		if (!isUndefined(from._isUTC)) {
  			to._isUTC = from._isUTC;
  		}
  		if (!isUndefined(from._offset)) {
  			to._offset = from._offset;
  		}
  		if (!isUndefined(from._pf)) {
  			to._pf = getParsingFlags(from);
  		}
  		if (!isUndefined(from._locale)) {
  			to._locale = from._locale;
  		}
  
  		if (momentProperties.length > 0) {
  			for (i = 0; i < momentProperties.length; i++) {
  				prop = momentProperties[i];
  				val = from[prop];
  				if (!isUndefined(val)) {
  					to[prop] = val;
  				}
  			}
  		}
  
  		return to;
  	}
  
  	var updateInProgress = false;
  
  	// Moment prototype object
  	function Moment(config) {
  		copyConfig(this, config);
  		this._d = new Date(config._d != null ? config._d.getTime() : NaN);
  		if (!this.isValid()) {
  			this._d = new Date(NaN);
  		}
  		// Prevent infinite loop in case updateOffset creates new moment
  		// objects.
  		if (updateInProgress === false) {
  			updateInProgress = true;
  			hooks.updateOffset(this);
  			updateInProgress = false;
  		}
  	}
  
  	function isMoment(obj) {
  		return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
  	}
  
  	function absFloor(number) {
  		if (number < 0) {
  			// -0 -> 0
  			return Math.ceil(number) || 0;
  		} else {
  			return Math.floor(number);
  		}
  	}
  
  	function toInt(argumentForCoercion) {
  		var coercedNumber = +argumentForCoercion,
  			value = 0;
  
  		if (coercedNumber !== 0 && isFinite(coercedNumber)) {
  			value = absFloor(coercedNumber);
  		}
  
  		return value;
  	}
  
  	// compare two arrays, return the number of differences
  	function compareArrays(array1, array2, dontConvert) {
  		var len = Math.min(array1.length, array2.length),
  			lengthDiff = Math.abs(array1.length - array2.length),
  			diffs = 0,
  			i;
  		for (i = 0; i < len; i++) {
  			if ((dontConvert && array1[i] !== array2[i]) ||
  				(!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
  				diffs++;
  			}
  		}
  		return diffs + lengthDiff;
  	}
  
  	function warn(msg) {
  		if (hooks.suppressDeprecationWarnings === false &&
  			(typeof console !== 'undefined') && console.warn) {
  			console.warn('Deprecation warning: ' + msg);
  		}
  	}
  
  	function deprecate(msg, fn) {
  		var firstTime = true;
  
  		return extend(function () {
  			if (hooks.deprecationHandler != null) {
  				hooks.deprecationHandler(null, msg);
  			}
  			if (firstTime) {
  				var args = [];
  				var arg;
  				for (var i = 0; i < arguments.length; i++) {
  					arg = '';
  					if (typeof arguments[i] === 'object') {
  						arg += '\n[' + i + '] ';
  						for (var key in arguments[0]) {
  							arg += key + ': ' + arguments[0][key] + ', ';
  						}
  						arg = arg.slice(0, -2); // Remove trailing comma and space
  					} else {
  						arg = arguments[i];
  					}
  					args.push(arg);
  				}
  				warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
  				firstTime = false;
  			}
  			return fn.apply(this, arguments);
  		}, fn);
  	}
  
  	var deprecations = {};
  
  	function deprecateSimple(name, msg) {
  		if (hooks.deprecationHandler != null) {
  			hooks.deprecationHandler(name, msg);
  		}
  		if (!deprecations[name]) {
  			warn(msg);
  			deprecations[name] = true;
  		}
  	}
  
  	hooks.suppressDeprecationWarnings = false;
  	hooks.deprecationHandler = null;
  
  	function isFunction(input) {
  		return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
  	}
  
  	function set(config) {
  		var prop, i;
  		for (i in config) {
  			prop = config[i];
  			if (isFunction(prop)) {
  				this[i] = prop;
  			} else {
  				this['_' + i] = prop;
  			}
  		}
  		this._config = config;
  		// Lenient ordinal parsing accepts just a number in addition to
  		// number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
  		// TODO: Remove "ordinalParse" fallback in next major release.
  		this._dayOfMonthOrdinalParseLenient = new RegExp(
  			(this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
  			'|' + (/\d{1,2}/).source);
  	}
  
  	function mergeConfigs(parentConfig, childConfig) {
  		var res = extend({}, parentConfig),
  			prop;
  		for (prop in childConfig) {
  			if (hasOwnProp(childConfig, prop)) {
  				if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
  					res[prop] = {};
  					extend(res[prop], parentConfig[prop]);
  					extend(res[prop], childConfig[prop]);
  				} else if (childConfig[prop] != null) {
  					res[prop] = childConfig[prop];
  				} else {
  					delete res[prop];
  				}
  			}
  		}
  		for (prop in parentConfig) {
  			if (hasOwnProp(parentConfig, prop) &&
  				!hasOwnProp(childConfig, prop) &&
  				isObject(parentConfig[prop])) {
  				// make sure changes to properties don't modify parent config
  				res[prop] = extend({}, res[prop]);
  			}
  		}
  		return res;
  	}
  
  	function Locale(config) {
  		if (config != null) {
  			this.set(config);
  		}
  	}
  
  	var keys;
  
  	if (Object.keys) {
  		keys = Object.keys;
  	} else {
  		keys = function (obj) {
  			var i, res = [];
  			for (i in obj) {
  				if (hasOwnProp(obj, i)) {
  					res.push(i);
  				}
  			}
  			return res;
  		};
  	}
  
  	var defaultCalendar = {
  		sameDay: '[Today at] LT',
  		nextDay: '[Tomorrow at] LT',
  		nextWeek: 'dddd [at] LT',
  		lastDay: '[Yesterday at] LT',
  		lastWeek: '[Last] dddd [at] LT',
  		sameElse: 'L'
  	};
  
  	function calendar(key, mom, now) {
  		var output = this._calendar[key] || this._calendar['sameElse'];
  		return isFunction(output) ? output.call(mom, now) : output;
  	}
  
  	var defaultLongDateFormat = {
  		LTS: 'h:mm:ss A',
  		LT: 'h:mm A',
  		L: 'MM/DD/YYYY',
  		LL: 'MMMM D, YYYY',
  		LLL: 'MMMM D, YYYY h:mm A',
  		LLLL: 'dddd, MMMM D, YYYY h:mm A'
  	};
  
  	function longDateFormat(key) {
  		var format = this._longDateFormat[key],
  			formatUpper = this._longDateFormat[key.toUpperCase()];
  
  		if (format || !formatUpper) {
  			return format;
  		}
  
  		this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
  			return val.slice(1);
  		});
  
  		return this._longDateFormat[key];
  	}
  
  	var defaultInvalidDate = 'Invalid date';
  
  	function invalidDate() {
  		return this._invalidDate;
  	}
  
  	var defaultOrdinal = '%d';
  	var defaultDayOfMonthOrdinalParse = /\d{1,2}/;
  
  	function ordinal(number) {
  		return this._ordinal.replace('%d', number);
  	}
  
  	var defaultRelativeTime = {
  		future: 'in %s',
  		past: '%s ago',
  		s: 'a few seconds',
  		ss: '%d seconds',
  		m: 'a minute',
  		mm: '%d minutes',
  		h: 'an hour',
  		hh: '%d hours',
  		d: 'a day',
  		dd: '%d days',
  		M: 'a month',
  		MM: '%d months',
  		y: 'a year',
  		yy: '%d years'
  	};
  
  	function relativeTime(number, withoutSuffix, string, isFuture) {
  		var output = this._relativeTime[string];
  		return (isFunction(output)) ?
  			output(number, withoutSuffix, string, isFuture) :
  			output.replace(/%d/i, number);
  	}
  
  	function pastFuture(diff, output) {
  		var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
  		return isFunction(format) ? format(output) : format.replace(/%s/i, output);
  	}
  
  	var aliases = {};
  
  	function addUnitAlias(unit, shorthand) {
  		var lowerCase = unit.toLowerCase();
  		aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
  	}
  
  	function normalizeUnits(units) {
  		return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
  	}
  
  	function normalizeObjectUnits(inputObject) {
  		var normalizedInput = {},
  			normalizedProp,
  			prop;
  
  		for (prop in inputObject) {
  			if (hasOwnProp(inputObject, prop)) {
  				normalizedProp = normalizeUnits(prop);
  				if (normalizedProp) {
  					normalizedInput[normalizedProp] = inputObject[prop];
  				}
  			}
  		}
  
  		return normalizedInput;
  	}
  
  	var priorities = {};
  
  	function addUnitPriority(unit, priority) {
  		priorities[unit] = priority;
  	}
  
  	function getPrioritizedUnits(unitsObj) {
  		var units = [];
  		for (var u in unitsObj) {
  			units.push({
  				unit: u,
  				priority: priorities[u]
  			});
  		}
  		units.sort(function (a, b) {
  			return a.priority - b.priority;
  		});
  		return units;
  	}
  
  	function zeroFill(number, targetLength, forceSign) {
  		var absNumber = '' + Math.abs(number),
  			zerosToFill = targetLength - absNumber.length,
  			sign = number >= 0;
  		return (sign ? (forceSign ? '+' : '') : '-') +
  			Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
  	}
  
  	var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;
  
  	var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;
  
  	var formatFunctions = {};
  
  	var formatTokenFunctions = {};
  
  	// token:    'M'
  	// padded:   ['MM', 2]
  	// ordinal:  'Mo'
  	// callback: function () { this.month() + 1 }
  	function addFormatToken(token, padded, ordinal, callback) {
  		var func = callback;
  		if (typeof callback === 'string') {
  			func = function () {
  				return this[callback]();
  			};
  		}
  		if (token) {
  			formatTokenFunctions[token] = func;
  		}
  		if (padded) {
  			formatTokenFunctions[padded[0]] = function () {
  				return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
  			};
  		}
  		if (ordinal) {
  			formatTokenFunctions[ordinal] = function () {
  				return this.localeData().ordinal(func.apply(this, arguments), token);
  			};
  		}
  	}
  
  	function removeFormattingTokens(input) {
  		if (input.match(/\[[\s\S]/)) {
  			return input.replace(/^\[|\]$/g, '');
  		}
  		return input.replace(/\\/g, '');
  	}
  
  	function makeFormatFunction(format) {
  		var array = format.match(formattingTokens),
  			i, length;
  
  		for (i = 0, length = array.length; i < length; i++) {
  			if (formatTokenFunctions[array[i]]) {
  				array[i] = formatTokenFunctions[array[i]];
  			} else {
  				array[i] = removeFormattingTokens(array[i]);
  			}
  		}
  
  		return function (mom) {
  			var output = '',
  				i;
  			for (i = 0; i < length; i++) {
  				output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
  			}
  			return output;
  		};
  	}
  
  	// format date using native date object
  	function formatMoment(m, format) {
  		if (!m.isValid()) {
  			return m.localeData().invalidDate();
  		}
  
  		format = expandFormat(format, m.localeData());
  		formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);
  
  		return formatFunctions[format](m);
  	}
  
  	function expandFormat(format, locale) {
  		var i = 5;
  
  		function replaceLongDateFormatTokens(input) {
  			return locale.longDateFormat(input) || input;
  		}
  
  		localFormattingTokens.lastIndex = 0;
  		while (i >= 0 && localFormattingTokens.test(format)) {
  			format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
  			localFormattingTokens.lastIndex = 0;
  			i -= 1;
  		}
  
  		return format;
  	}
  
  	var match1 = /\d/; //       0 - 9
  	var match2 = /\d\d/; //      00 - 99
  	var match3 = /\d{3}/; //     000 - 999
  	var match4 = /\d{4}/; //    0000 - 9999
  	var match6 = /[+-]?\d{6}/; // -999999 - 999999
  	var match1to2 = /\d\d?/; //       0 - 99
  	var match3to4 = /\d\d\d\d?/; //     999 - 9999
  	var match5to6 = /\d\d\d\d\d\d?/; //   99999 - 999999
  	var match1to3 = /\d{1,3}/; //       0 - 999
  	var match1to4 = /\d{1,4}/; //       0 - 9999
  	var match1to6 = /[+-]?\d{1,6}/; // -999999 - 999999
  
  	var matchUnsigned = /\d+/; //       0 - inf
  	var matchSigned = /[+-]?\d+/; //    -inf - inf
  
  	var matchOffset = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
  	var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z
  
  	var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123
  
  	// any word (or two) characters or numbers including two/three word month in arabic.
  	// includes scottish gaelic two word and hyphenated months
  	var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;
  
  	var regexes = {};
  
  	function addRegexToken(token, regex, strictRegex) {
  		regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
  			return (isStrict && strictRegex) ? strictRegex : regex;
  		};
  	}
  
  	function getParseRegexForToken(token, config) {
  		if (!hasOwnProp(regexes, token)) {
  			return new RegExp(unescapeFormat(token));
  		}
  
  		return regexes[token](config._strict, config._locale);
  	}
  
  	// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
  	function unescapeFormat(s) {
  		return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
  			return p1 || p2 || p3 || p4;
  		}));
  	}
  
  	function regexEscape(s) {
  		return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
  	}
  
  	var tokens = {};
  
  	function addParseToken(token, callback) {
  		var i, func = callback;
  		if (typeof token === 'string') {
  			token = [token];
  		}
  		if (isNumber(callback)) {
  			func = function (input, array) {
  				array[callback] = toInt(input);
  			};
  		}
  		for (i = 0; i < token.length; i++) {
  			tokens[token[i]] = func;
  		}
  	}
  
  	function addWeekParseToken(token, callback) {
  		addParseToken(token, function (input, array, config, token) {
  			config._w = config._w || {};
  			callback(input, config._w, config, token);
  		});
  	}
  
  	function addTimeToArrayFromToken(token, input, config) {
  		if (input != null && hasOwnProp(tokens, token)) {
  			tokens[token](input, config._a, config, token);
  		}
  	}
  
  	var YEAR = 0;
  	var MONTH = 1;
  	var DATE = 2;
  	var HOUR = 3;
  	var MINUTE = 4;
  	var SECOND = 5;
  	var MILLISECOND = 6;
  	var WEEK = 7;
  	var WEEKDAY = 8;
  
  	// FORMATTING
  
  	addFormatToken('Y', 0, 0, function () {
  		var y = this.year();
  		return y <= 9999 ? '' + y : '+' + y;
  	});
  
  	addFormatToken(0, ['YY', 2], 0, function () {
  		return this.year() % 100;
  	});
  
  	addFormatToken(0, ['YYYY', 4], 0, 'year');
  	addFormatToken(0, ['YYYYY', 5], 0, 'year');
  	addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');
  
  	// ALIASES
  
  	addUnitAlias('year', 'y');
  
  	// PRIORITIES
  
  	addUnitPriority('year', 1);
  
  	// PARSING
  
  	addRegexToken('Y', matchSigned);
  	addRegexToken('YY', match1to2, match2);
  	addRegexToken('YYYY', match1to4, match4);
  	addRegexToken('YYYYY', match1to6, match6);
  	addRegexToken('YYYYYY', match1to6, match6);
  
  	addParseToken(['YYYYY', 'YYYYYY'], YEAR);
  	addParseToken('YYYY', function (input, array) {
  		array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
  	});
  	addParseToken('YY', function (input, array) {
  		array[YEAR] = hooks.parseTwoDigitYear(input);
  	});
  	addParseToken('Y', function (input, array) {
  		array[YEAR] = parseInt(input, 10);
  	});
  
  	// HELPERS
  
  	function daysInYear(year) {
  		return isLeapYear(year) ? 366 : 365;
  	}
  
  	function isLeapYear(year) {
  		return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
  	}
  
  	// HOOKS
  
  	hooks.parseTwoDigitYear = function (input) {
  		return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
  	};
  
  	// MOMENTS
  
  	var getSetYear = makeGetSet('FullYear', true);
  
  	function getIsLeapYear() {
  		return isLeapYear(this.year());
  	}
  
  	function makeGetSet(unit, keepTime) {
  		return function (value) {
  			if (value != null) {
  				set$1(this, unit, value);
  				hooks.updateOffset(this, keepTime);
  				return this;
  			} else {
  				return get(this, unit);
  			}
  		};
  	}
  
  	function get(mom, unit) {
  		return mom.isValid() ?
  			mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
  	}
  
  	function set$1(mom, unit, value) {
  		if (mom.isValid() && !isNaN(value)) {
  			if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
  				mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
  			} else {
  				mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
  			}
  		}
  	}
  
  	// MOMENTS
  
  	function stringGet(units) {
  		units = normalizeUnits(units);
  		if (isFunction(this[units])) {
  			return this[units]();
  		}
  		return this;
  	}
  
  
  	function stringSet(units, value) {
  		if (typeof units === 'object') {
  			units = normalizeObjectUnits(units);
  			var prioritized = getPrioritizedUnits(units);
  			for (var i = 0; i < prioritized.length; i++) {
  				this[prioritized[i].unit](units[prioritized[i].unit]);
  			}
  		} else {
  			units = normalizeUnits(units);
  			if (isFunction(this[units])) {
  				return this[units](value);
  			}
  		}
  		return this;
  	}
  
  	function mod(n, x) {
  		return ((n % x) + x) % x;
  	}
  
  	var indexOf;
  
  	if (Array.prototype.indexOf) {
  		indexOf = Array.prototype.indexOf;
  	} else {
  		indexOf = function (o) {
  			// I know
  			var i;
  			for (i = 0; i < this.length; ++i) {
  				if (this[i] === o) {
  					return i;
  				}
  			}
  			return -1;
  		};
  	}
  
  	function daysInMonth(year, month) {
  		if (isNaN(year) || isNaN(month)) {
  			return NaN;
  		}
  		var modMonth = mod(month, 12);
  		year += (month - modMonth) / 12;
  		return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
  	}
  
  	// FORMATTING
  
  	addFormatToken('M', ['MM', 2], 'Mo', function () {
  		return this.month() + 1;
  	});
  
  	addFormatToken('MMM', 0, 0, function (format) {
  		return this.localeData().monthsShort(this, format);
  	});
  
  	addFormatToken('MMMM', 0, 0, function (format) {
  		return this.localeData().months(this, format);
  	});
  
  	// ALIASES
  
  	addUnitAlias('month', 'M');
  
  	// PRIORITY
  
  	addUnitPriority('month', 8);
  
  	// PARSING
  
  	addRegexToken('M', match1to2);
  	addRegexToken('MM', match1to2, match2);
  	addRegexToken('MMM', function (isStrict, locale) {
  		return locale.monthsShortRegex(isStrict);
  	});
  	addRegexToken('MMMM', function (isStrict, locale) {
  		return locale.monthsRegex(isStrict);
  	});
  
  	addParseToken(['M', 'MM'], function (input, array) {
  		array[MONTH] = toInt(input) - 1;
  	});
  
  	addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
  		var month = config._locale.monthsParse(input, token, config._strict);
  		// if we didn't find a month name, mark the date as invalid.
  		if (month != null) {
  			array[MONTH] = month;
  		} else {
  			getParsingFlags(config).invalidMonth = input;
  		}
  	});
  
  	// LOCALES
  
  	var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
  	var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
  
  	function localeMonths(m, format) {
  		if (!m) {
  			return isArray(this._months) ? this._months :
  				this._months['standalone'];
  		}
  		return isArray(this._months) ? this._months[m.month()] :
  			this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
  	}
  
  	var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
  
  	function localeMonthsShort(m, format) {
  		if (!m) {
  			return isArray(this._monthsShort) ? this._monthsShort :
  				this._monthsShort['standalone'];
  		}
  		return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
  			this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
  	}
  
  	function handleStrictParse(monthName, format, strict) {
  		var i, ii, mom, llc = monthName.toLocaleLowerCase();
  		if (!this._monthsParse) {
  			// this is not used
  			this._monthsParse = [];
  			this._longMonthsParse = [];
  			this._shortMonthsParse = [];
  			for (i = 0; i < 12; ++i) {
  				mom = createUTC([2000, i]);
  				this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
  				this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
  			}
  		}
  
  		if (strict) {
  			if (format === 'MMM') {
  				ii = indexOf.call(this._shortMonthsParse, llc);
  				return ii !== -1 ? ii : null;
  			} else {
  				ii = indexOf.call(this._longMonthsParse, llc);
  				return ii !== -1 ? ii : null;
  			}
  		} else {
  			if (format === 'MMM') {
  				ii = indexOf.call(this._shortMonthsParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._longMonthsParse, llc);
  				return ii !== -1 ? ii : null;
  			} else {
  				ii = indexOf.call(this._longMonthsParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._shortMonthsParse, llc);
  				return ii !== -1 ? ii : null;
  			}
  		}
  	}
  
  	function localeMonthsParse(monthName, format, strict) {
  		var i, mom, regex;
  
  		if (this._monthsParseExact) {
  			return handleStrictParse.call(this, monthName, format, strict);
  		}
  
  		if (!this._monthsParse) {
  			this._monthsParse = [];
  			this._longMonthsParse = [];
  			this._shortMonthsParse = [];
  		}
  
  		// TODO: add sorting
  		// Sorting makes sure if one month (or abbr) is a prefix of another
  		// see sorting in computeMonthsParse
  		for (i = 0; i < 12; i++) {
  			// make the regex if we don't have it already
  			mom = createUTC([2000, i]);
  			if (strict && !this._longMonthsParse[i]) {
  				this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
  				this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
  			}
  			if (!strict && !this._monthsParse[i]) {
  				regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
  				this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
  			}
  			// test the regex
  			if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
  				return i;
  			} else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
  				return i;
  			} else if (!strict && this._monthsParse[i].test(monthName)) {
  				return i;
  			}
  		}
  	}
  
  	// MOMENTS
  
  	function setMonth(mom, value) {
  		var dayOfMonth;
  
  		if (!mom.isValid()) {
  			// No op
  			return mom;
  		}
  
  		if (typeof value === 'string') {
  			if (/^\d+$/.test(value)) {
  				value = toInt(value);
  			} else {
  				value = mom.localeData().monthsParse(value);
  				// TODO: Another silent failure?
  				if (!isNumber(value)) {
  					return mom;
  				}
  			}
  		}
  
  		dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
  		mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
  		return mom;
  	}
  
  	function getSetMonth(value) {
  		if (value != null) {
  			setMonth(this, value);
  			hooks.updateOffset(this, true);
  			return this;
  		} else {
  			return get(this, 'Month');
  		}
  	}
  
  	function getDaysInMonth() {
  		return daysInMonth(this.year(), this.month());
  	}
  
  	var defaultMonthsShortRegex = matchWord;
  
  	function monthsShortRegex(isStrict) {
  		if (this._monthsParseExact) {
  			if (!hasOwnProp(this, '_monthsRegex')) {
  				computeMonthsParse.call(this);
  			}
  			if (isStrict) {
  				return this._monthsShortStrictRegex;
  			} else {
  				return this._monthsShortRegex;
  			}
  		} else {
  			if (!hasOwnProp(this, '_monthsShortRegex')) {
  				this._monthsShortRegex = defaultMonthsShortRegex;
  			}
  			return this._monthsShortStrictRegex && isStrict ?
  				this._monthsShortStrictRegex : this._monthsShortRegex;
  		}
  	}
  
  	var defaultMonthsRegex = matchWord;
  
  	function monthsRegex(isStrict) {
  		if (this._monthsParseExact) {
  			if (!hasOwnProp(this, '_monthsRegex')) {
  				computeMonthsParse.call(this);
  			}
  			if (isStrict) {
  				return this._monthsStrictRegex;
  			} else {
  				return this._monthsRegex;
  			}
  		} else {
  			if (!hasOwnProp(this, '_monthsRegex')) {
  				this._monthsRegex = defaultMonthsRegex;
  			}
  			return this._monthsStrictRegex && isStrict ?
  				this._monthsStrictRegex : this._monthsRegex;
  		}
  	}
  
  	function computeMonthsParse() {
  		function cmpLenRev(a, b) {
  			return b.length - a.length;
  		}
  
  		var shortPieces = [],
  			longPieces = [],
  			mixedPieces = [],
  			i, mom;
  		for (i = 0; i < 12; i++) {
  			// make the regex if we don't have it already
  			mom = createUTC([2000, i]);
  			shortPieces.push(this.monthsShort(mom, ''));
  			longPieces.push(this.months(mom, ''));
  			mixedPieces.push(this.months(mom, ''));
  			mixedPieces.push(this.monthsShort(mom, ''));
  		}
  		// Sorting makes sure if one month (or abbr) is a prefix of another it
  		// will match the longer piece.
  		shortPieces.sort(cmpLenRev);
  		longPieces.sort(cmpLenRev);
  		mixedPieces.sort(cmpLenRev);
  		for (i = 0; i < 12; i++) {
  			shortPieces[i] = regexEscape(shortPieces[i]);
  			longPieces[i] = regexEscape(longPieces[i]);
  		}
  		for (i = 0; i < 24; i++) {
  			mixedPieces[i] = regexEscape(mixedPieces[i]);
  		}
  
  		this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
  		this._monthsShortRegex = this._monthsRegex;
  		this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
  		this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
  	}
  
  	function createDate(y, m, d, h, M, s, ms) {
  		// can't just apply() to create a date:
  		// https://stackoverflow.com/q/181348
  		var date;
  		// the date constructor remaps years 0-99 to 1900-1999
  		if (y < 100 && y >= 0) {
  			// preserve leap years using a full 400 year cycle, then reset
  			date = new Date(y + 400, m, d, h, M, s, ms);
  			if (isFinite(date.getFullYear())) {
  				date.setFullYear(y);
  			}
  		} else {
  			date = new Date(y, m, d, h, M, s, ms);
  		}
  
  		return date;
  	}
  
  	function createUTCDate(y) {
  		var date;
  		// the Date.UTC function remaps years 0-99 to 1900-1999
  		if (y < 100 && y >= 0) {
  			var args = Array.prototype.slice.call(arguments);
  			// preserve leap years using a full 400 year cycle, then reset
  			args[0] = y + 400;
  			date = new Date(Date.UTC.apply(null, args));
  			if (isFinite(date.getUTCFullYear())) {
  				date.setUTCFullYear(y);
  			}
  		} else {
  			date = new Date(Date.UTC.apply(null, arguments));
  		}
  
  		return date;
  	}
  
  	// start-of-first-week - start-of-year
  	function firstWeekOffset(year, dow, doy) {
  		var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
  			fwd = 7 + dow - doy,
  			// first-week day local weekday -- which local weekday is fwd
  			fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;
  
  		return -fwdlw + fwd - 1;
  	}
  
  	// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
  	function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
  		var localWeekday = (7 + weekday - dow) % 7,
  			weekOffset = firstWeekOffset(year, dow, doy),
  			dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
  			resYear, resDayOfYear;
  
  		if (dayOfYear <= 0) {
  			resYear = year - 1;
  			resDayOfYear = daysInYear(resYear) + dayOfYear;
  		} else if (dayOfYear > daysInYear(year)) {
  			resYear = year + 1;
  			resDayOfYear = dayOfYear - daysInYear(year);
  		} else {
  			resYear = year;
  			resDayOfYear = dayOfYear;
  		}
  
  		return {
  			year: resYear,
  			dayOfYear: resDayOfYear
  		};
  	}
  
  	function weekOfYear(mom, dow, doy) {
  		var weekOffset = firstWeekOffset(mom.year(), dow, doy),
  			week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
  			resWeek, resYear;
  
  		if (week < 1) {
  			resYear = mom.year() - 1;
  			resWeek = week + weeksInYear(resYear, dow, doy);
  		} else if (week > weeksInYear(mom.year(), dow, doy)) {
  			resWeek = week - weeksInYear(mom.year(), dow, doy);
  			resYear = mom.year() + 1;
  		} else {
  			resYear = mom.year();
  			resWeek = week;
  		}
  
  		return {
  			week: resWeek,
  			year: resYear
  		};
  	}
  
  	function weeksInYear(year, dow, doy) {
  		var weekOffset = firstWeekOffset(year, dow, doy),
  			weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
  		return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
  	}
  
  	// FORMATTING
  
  	addFormatToken('w', ['ww', 2], 'wo', 'week');
  	addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');
  
  	// ALIASES
  
  	addUnitAlias('week', 'w');
  	addUnitAlias('isoWeek', 'W');
  
  	// PRIORITIES
  
  	addUnitPriority('week', 5);
  	addUnitPriority('isoWeek', 5);
  
  	// PARSING
  
  	addRegexToken('w', match1to2);
  	addRegexToken('ww', match1to2, match2);
  	addRegexToken('W', match1to2);
  	addRegexToken('WW', match1to2, match2);
  
  	addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
  		week[token.substr(0, 1)] = toInt(input);
  	});
  
  	// HELPERS
  
  	// LOCALES
  
  	function localeWeek(mom) {
  		return weekOfYear(mom, this._week.dow, this._week.doy).week;
  	}
  
  	var defaultLocaleWeek = {
  		dow: 0, // Sunday is the first day of the week.
  		doy: 6 // The week that contains Jan 6th is the first week of the year.
  	};
  
  	function localeFirstDayOfWeek() {
  		return this._week.dow;
  	}
  
  	function localeFirstDayOfYear() {
  		return this._week.doy;
  	}
  
  	// MOMENTS
  
  	function getSetWeek(input) {
  		var week = this.localeData().week(this);
  		return input == null ? week : this.add((input - week) * 7, 'd');
  	}
  
  	function getSetISOWeek(input) {
  		var week = weekOfYear(this, 1, 4).week;
  		return input == null ? week : this.add((input - week) * 7, 'd');
  	}
  
  	// FORMATTING
  
  	addFormatToken('d', 0, 'do', 'day');
  
  	addFormatToken('dd', 0, 0, function (format) {
  		return this.localeData().weekdaysMin(this, format);
  	});
  
  	addFormatToken('ddd', 0, 0, function (format) {
  		return this.localeData().weekdaysShort(this, format);
  	});
  
  	addFormatToken('dddd', 0, 0, function (format) {
  		return this.localeData().weekdays(this, format);
  	});
  
  	addFormatToken('e', 0, 0, 'weekday');
  	addFormatToken('E', 0, 0, 'isoWeekday');
  
  	// ALIASES
  
  	addUnitAlias('day', 'd');
  	addUnitAlias('weekday', 'e');
  	addUnitAlias('isoWeekday', 'E');
  
  	// PRIORITY
  	addUnitPriority('day', 11);
  	addUnitPriority('weekday', 11);
  	addUnitPriority('isoWeekday', 11);
  
  	// PARSING
  
  	addRegexToken('d', match1to2);
  	addRegexToken('e', match1to2);
  	addRegexToken('E', match1to2);
  	addRegexToken('dd', function (isStrict, locale) {
  		return locale.weekdaysMinRegex(isStrict);
  	});
  	addRegexToken('ddd', function (isStrict, locale) {
  		return locale.weekdaysShortRegex(isStrict);
  	});
  	addRegexToken('dddd', function (isStrict, locale) {
  		return locale.weekdaysRegex(isStrict);
  	});
  
  	addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
  		var weekday = config._locale.weekdaysParse(input, token, config._strict);
  		// if we didn't get a weekday name, mark the date as invalid
  		if (weekday != null) {
  			week.d = weekday;
  		} else {
  			getParsingFlags(config).invalidWeekday = input;
  		}
  	});
  
  	addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
  		week[token] = toInt(input);
  	});
  
  	// HELPERS
  
  	function parseWeekday(input, locale) {
  		if (typeof input !== 'string') {
  			return input;
  		}
  
  		if (!isNaN(input)) {
  			return parseInt(input, 10);
  		}
  
  		input = locale.weekdaysParse(input);
  		if (typeof input === 'number') {
  			return input;
  		}
  
  		return null;
  	}
  
  	function parseIsoWeekday(input, locale) {
  		if (typeof input === 'string') {
  			return locale.weekdaysParse(input) % 7 || 7;
  		}
  		return isNaN(input) ? null : input;
  	}
  
  	// LOCALES
  	function shiftWeekdays(ws, n) {
  		return ws.slice(n, 7).concat(ws.slice(0, n));
  	}
  
  	var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
  
  	function localeWeekdays(m, format) {
  		var weekdays = isArray(this._weekdays) ? this._weekdays :
  			this._weekdays[(m && m !== true && this._weekdays.isFormat.test(format)) ? 'format' : 'standalone'];
  		return (m === true) ? shiftWeekdays(weekdays, this._week.dow) :
  			(m) ? weekdays[m.day()] : weekdays;
  	}
  
  	var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
  
  	function localeWeekdaysShort(m) {
  		return (m === true) ? shiftWeekdays(this._weekdaysShort, this._week.dow) :
  			(m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
  	}
  
  	var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
  
  	function localeWeekdaysMin(m) {
  		return (m === true) ? shiftWeekdays(this._weekdaysMin, this._week.dow) :
  			(m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
  	}
  
  	function handleStrictParse$1(weekdayName, format, strict) {
  		var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
  		if (!this._weekdaysParse) {
  			this._weekdaysParse = [];
  			this._shortWeekdaysParse = [];
  			this._minWeekdaysParse = [];
  
  			for (i = 0; i < 7; ++i) {
  				mom = createUTC([2000, 1]).day(i);
  				this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
  				this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
  				this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
  			}
  		}
  
  		if (strict) {
  			if (format === 'dddd') {
  				ii = indexOf.call(this._weekdaysParse, llc);
  				return ii !== -1 ? ii : null;
  			} else if (format === 'ddd') {
  				ii = indexOf.call(this._shortWeekdaysParse, llc);
  				return ii !== -1 ? ii : null;
  			} else {
  				ii = indexOf.call(this._minWeekdaysParse, llc);
  				return ii !== -1 ? ii : null;
  			}
  		} else {
  			if (format === 'dddd') {
  				ii = indexOf.call(this._weekdaysParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._shortWeekdaysParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._minWeekdaysParse, llc);
  				return ii !== -1 ? ii : null;
  			} else if (format === 'ddd') {
  				ii = indexOf.call(this._shortWeekdaysParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._weekdaysParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._minWeekdaysParse, llc);
  				return ii !== -1 ? ii : null;
  			} else {
  				ii = indexOf.call(this._minWeekdaysParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._weekdaysParse, llc);
  				if (ii !== -1) {
  					return ii;
  				}
  				ii = indexOf.call(this._shortWeekdaysParse, llc);
  				return ii !== -1 ? ii : null;
  			}
  		}
  	}
  
  	function localeWeekdaysParse(weekdayName, format, strict) {
  		var i, mom, regex;
  
  		if (this._weekdaysParseExact) {
  			return handleStrictParse$1.call(this, weekdayName, format, strict);
  		}
  
  		if (!this._weekdaysParse) {
  			this._weekdaysParse = [];
  			this._minWeekdaysParse = [];
  			this._shortWeekdaysParse = [];
  			this._fullWeekdaysParse = [];
  		}
  
  		for (i = 0; i < 7; i++) {
  			// make the regex if we don't have it already
  
  			mom = createUTC([2000, 1]).day(i);
  			if (strict && !this._fullWeekdaysParse[i]) {
  				this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i');
  				this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i');
  				this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i');
  			}
  			if (!this._weekdaysParse[i]) {
  				regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
  				this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
  			}
  			// test the regex
  			if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
  				return i;
  			} else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
  				return i;
  			} else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
  				return i;
  			} else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
  				return i;
  			}
  		}
  	}
  
  	// MOMENTS
  
  	function getSetDayOfWeek(input) {
  		if (!this.isValid()) {
  			return input != null ? this : NaN;
  		}
  		var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
  		if (input != null) {
  			input = parseWeekday(input, this.localeData());
  			return this.add(input - day, 'd');
  		} else {
  			return day;
  		}
  	}
  
  	function getSetLocaleDayOfWeek(input) {
  		if (!this.isValid()) {
  			return input != null ? this : NaN;
  		}
  		var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
  		return input == null ? weekday : this.add(input - weekday, 'd');
  	}
  
  	function getSetISODayOfWeek(input) {
  		if (!this.isValid()) {
  			return input != null ? this : NaN;
  		}
  
  		// behaves the same as moment#day except
  		// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
  		// as a setter, sunday should belong to the previous week.
  
  		if (input != null) {
  			var weekday = parseIsoWeekday(input, this.localeData());
  			return this.day(this.day() % 7 ? weekday : weekday - 7);
  		} else {
  			return this.day() || 7;
  		}
  	}
  
  	var defaultWeekdaysRegex = matchWord;
  
  	function weekdaysRegex(isStrict) {
  		if (this._weekdaysParseExact) {
  			if (!hasOwnProp(this, '_weekdaysRegex')) {
  				computeWeekdaysParse.call(this);
  			}
  			if (isStrict) {
  				return this._weekdaysStrictRegex;
  			} else {
  				return this._weekdaysRegex;
  			}
  		} else {
  			if (!hasOwnProp(this, '_weekdaysRegex')) {
  				this._weekdaysRegex = defaultWeekdaysRegex;
  			}
  			return this._weekdaysStrictRegex && isStrict ?
  				this._weekdaysStrictRegex : this._weekdaysRegex;
  		}
  	}
  
  	var defaultWeekdaysShortRegex = matchWord;
  
  	function weekdaysShortRegex(isStrict) {
  		if (this._weekdaysParseExact) {
  			if (!hasOwnProp(this, '_weekdaysRegex')) {
  				computeWeekdaysParse.call(this);
  			}
  			if (isStrict) {
  				return this._weekdaysShortStrictRegex;
  			} else {
  				return this._weekdaysShortRegex;
  			}
  		} else {
  			if (!hasOwnProp(this, '_weekdaysShortRegex')) {
  				this._weekdaysShortRegex = defaultWeekdaysShortRegex;
  			}
  			return this._weekdaysShortStrictRegex && isStrict ?
  				this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
  		}
  	}
  
  	var defaultWeekdaysMinRegex = matchWord;
  
  	function weekdaysMinRegex(isStrict) {
  		if (this._weekdaysParseExact) {
  			if (!hasOwnProp(this, '_weekdaysRegex')) {
  				computeWeekdaysParse.call(this);
  			}
  			if (isStrict) {
  				return this._weekdaysMinStrictRegex;
  			} else {
  				return this._weekdaysMinRegex;
  			}
  		} else {
  			if (!hasOwnProp(this, '_weekdaysMinRegex')) {
  				this._weekdaysMinRegex = defaultWeekdaysMinRegex;
  			}
  			return this._weekdaysMinStrictRegex && isStrict ?
  				this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
  		}
  	}
  
  
  	function computeWeekdaysParse() {
  		function cmpLenRev(a, b) {
  			return b.length - a.length;
  		}
  
  		var minPieces = [],
  			shortPieces = [],
  			longPieces = [],
  			mixedPieces = [],
  			i, mom, minp, shortp, longp;
  		for (i = 0; i < 7; i++) {
  			// make the regex if we don't have it already
  			mom = createUTC([2000, 1]).day(i);
  			minp = this.weekdaysMin(mom, '');
  			shortp = this.weekdaysShort(mom, '');
  			longp = this.weekdays(mom, '');
  			minPieces.push(minp);
  			shortPieces.push(shortp);
  			longPieces.push(longp);
  			mixedPieces.push(minp);
  			mixedPieces.push(shortp);
  			mixedPieces.push(longp);
  		}
  		// Sorting makes sure if one weekday (or abbr) is a prefix of another it
  		// will match the longer piece.
  		minPieces.sort(cmpLenRev);
  		shortPieces.sort(cmpLenRev);
  		longPieces.sort(cmpLenRev);
  		mixedPieces.sort(cmpLenRev);
  		for (i = 0; i < 7; i++) {
  			shortPieces[i] = regexEscape(shortPieces[i]);
  			longPieces[i] = regexEscape(longPieces[i]);
  			mixedPieces[i] = regexEscape(mixedPieces[i]);
  		}
  
  		this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
  		this._weekdaysShortRegex = this._weekdaysRegex;
  		this._weekdaysMinRegex = this._weekdaysRegex;
  
  		this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
  		this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
  		this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
  	}
  
  	// FORMATTING
  
  	function hFormat() {
  		return this.hours() % 12 || 12;
  	}
  
  	function kFormat() {
  		return this.hours() || 24;
  	}
  
  	addFormatToken('H', ['HH', 2], 0, 'hour');
  	addFormatToken('h', ['hh', 2], 0, hFormat);
  	addFormatToken('k', ['kk', 2], 0, kFormat);
  
  	addFormatToken('hmm', 0, 0, function () {
  		return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
  	});
  
  	addFormatToken('hmmss', 0, 0, function () {
  		return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
  			zeroFill(this.seconds(), 2);
  	});
  
  	addFormatToken('Hmm', 0, 0, function () {
  		return '' + this.hours() + zeroFill(this.minutes(), 2);
  	});
  
  	addFormatToken('Hmmss', 0, 0, function () {
  		return '' + this.hours() + zeroFill(this.minutes(), 2) +
  			zeroFill(this.seconds(), 2);
  	});
  
  	function meridiem(token, lowercase) {
  		addFormatToken(token, 0, 0, function () {
  			return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
  		});
  	}
  
  	meridiem('a', true);
  	meridiem('A', false);
  
  	// ALIASES
  
  	addUnitAlias('hour', 'h');
  
  	// PRIORITY
  	addUnitPriority('hour', 13);
  
  	// PARSING
  
  	function matchMeridiem(isStrict, locale) {
  		return locale._meridiemParse;
  	}
  
  	addRegexToken('a', matchMeridiem);
  	addRegexToken('A', matchMeridiem);
  	addRegexToken('H', match1to2);
  	addRegexToken('h', match1to2);
  	addRegexToken('k', match1to2);
  	addRegexToken('HH', match1to2, match2);
  	addRegexToken('hh', match1to2, match2);
  	addRegexToken('kk', match1to2, match2);
  
  	addRegexToken('hmm', match3to4);
  	addRegexToken('hmmss', match5to6);
  	addRegexToken('Hmm', match3to4);
  	addRegexToken('Hmmss', match5to6);
  
  	addParseToken(['H', 'HH'], HOUR);
  	addParseToken(['k', 'kk'], function (input, array, config) {
  		var kInput = toInt(input);
  		array[HOUR] = kInput === 24 ? 0 : kInput;
  	});
  	addParseToken(['a', 'A'], function (input, array, config) {
  		config._isPm = config._locale.isPM(input);
  		config._meridiem = input;
  	});
  	addParseToken(['h', 'hh'], function (input, array, config) {
  		array[HOUR] = toInt(input);
  		getParsingFlags(config).bigHour = true;
  	});
  	addParseToken('hmm', function (input, array, config) {
  		var pos = input.length - 2;
  		array[HOUR] = toInt(input.substr(0, pos));
  		array[MINUTE] = toInt(input.substr(pos));
  		getParsingFlags(config).bigHour = true;
  	});
  	addParseToken('hmmss', function (input, array, config) {
  		var pos1 = input.length - 4;
  		var pos2 = input.length - 2;
  		array[HOUR] = toInt(input.substr(0, pos1));
  		array[MINUTE] = toInt(input.substr(pos1, 2));
  		array[SECOND] = toInt(input.substr(pos2));
  		getParsingFlags(config).bigHour = true;
  	});
  	addParseToken('Hmm', function (input, array, config) {
  		var pos = input.length - 2;
  		array[HOUR] = toInt(input.substr(0, pos));
  		array[MINUTE] = toInt(input.substr(pos));
  	});
  	addParseToken('Hmmss', function (input, array, config) {
  		var pos1 = input.length - 4;
  		var pos2 = input.length - 2;
  		array[HOUR] = toInt(input.substr(0, pos1));
  		array[MINUTE] = toInt(input.substr(pos1, 2));
  		array[SECOND] = toInt(input.substr(pos2));
  	});
  
  	// LOCALES
  
  	function localeIsPM(input) {
  		// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
  		// Using charAt should be more compatible.
  		return ((input + '').toLowerCase().charAt(0) === 'p');
  	}
  
  	var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
  
  	function localeMeridiem(hours, minutes, isLower) {
  		if (hours > 11) {
  			return isLower ? 'pm' : 'PM';
  		} else {
  			return isLower ? 'am' : 'AM';
  		}
  	}
  
  
  	// MOMENTS
  
  	// Setting the hour should keep the time, because the user explicitly
  	// specified which hour they want. So trying to maintain the same hour (in
  	// a new timezone) makes sense. Adding/subtracting hours does not follow
  	// this rule.
  	var getSetHour = makeGetSet('Hours', true);
  
  	var baseConfig = {
  		calendar: defaultCalendar,
  		longDateFormat: defaultLongDateFormat,
  		invalidDate: defaultInvalidDate,
  		ordinal: defaultOrdinal,
  		dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
  		relativeTime: defaultRelativeTime,
  
  		months: defaultLocaleMonths,
  		monthsShort: defaultLocaleMonthsShort,
  
  		week: defaultLocaleWeek,
  
  		weekdays: defaultLocaleWeekdays,
  		weekdaysMin: defaultLocaleWeekdaysMin,
  		weekdaysShort: defaultLocaleWeekdaysShort,
  
  		meridiemParse: defaultLocaleMeridiemParse
  	};
  
  	// internal storage for locale config files
  	var locales = {};
  	var localeFamilies = {};
  	var globalLocale;
  
  	function normalizeLocale(key) {
  		return key ? key.toLowerCase().replace('_', '-') : key;
  	}
  
  	// pick the locale from the array
  	// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
  	// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
  	function chooseLocale(names) {
  		var i = 0,
  			j, next, locale, split;
  
  		while (i < names.length) {
  			split = normalizeLocale(names[i]).split('-');
  			j = split.length;
  			next = normalizeLocale(names[i + 1]);
  			next = next ? next.split('-') : null;
  			while (j > 0) {
  				locale = loadLocale(split.slice(0, j).join('-'));
  				if (locale) {
  					return locale;
  				}
  				if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
  					//the next array item is better than a shallower substring of this one
  					break;
  				}
  				j--;
  			}
  			i++;
  		}
  		return globalLocale;
  	}
  
  	function loadLocale(name) {
  		var oldLocale = null;
  		// TODO: Find a better way to register and load all the locales in Node
  		if (!locales[name] && (typeof module !== 'undefined') &&
  			module && module.exports) {
  			try {
  				oldLocale = globalLocale._abbr;
  				var aliasedRequire = require;
  				aliasedRequire('./locale/' + name);
  				getSetGlobalLocale(oldLocale);
  			} catch (e) {}
  		}
  		return locales[name];
  	}
  
  	// This function will load locale and then set the global locale.  If
  	// no arguments are passed in, it will simply return the current global
  	// locale key.
  	function getSetGlobalLocale(key, values) {
  		var data;
  		if (key) {
  			if (isUndefined(values)) {
  				data = getLocale(key);
  			} else {
  				data = defineLocale(key, values);
  			}
  
  			if (data) {
  				// moment.duration._locale = moment._locale = data;
  				globalLocale = data;
  			} else {
  				if ((typeof console !== 'undefined') && console.warn) {
  					//warn user if arguments are passed but the locale could not be set
  					console.warn('Locale ' + key + ' not found. Did you forget to load it?');
  				}
  			}
  		}
  
  		return globalLocale._abbr;
  	}
  
  	function defineLocale(name, config) {
  		if (config !== null) {
  			var locale, parentConfig = baseConfig;
  			config.abbr = name;
  			if (locales[name] != null) {
  				deprecateSimple('defineLocaleOverride',
  					'use moment.updateLocale(localeName, config) to change ' +
  					'an existing locale. moment.defineLocale(localeName, ' +
  					'config) should only be used for creating a new locale ' +
  					'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
  				parentConfig = locales[name]._config;
  			} else if (config.parentLocale != null) {
  				if (locales[config.parentLocale] != null) {
  					parentConfig = locales[config.parentLocale]._config;
  				} else {
  					locale = loadLocale(config.parentLocale);
  					if (locale != null) {
  						parentConfig = locale._config;
  					} else {
  						if (!localeFamilies[config.parentLocale]) {
  							localeFamilies[config.parentLocale] = [];
  						}
  						localeFamilies[config.parentLocale].push({
  							name: name,
  							config: config
  						});
  						return null;
  					}
  				}
  			}
  			locales[name] = new Locale(mergeConfigs(parentConfig, config));
  
  			if (localeFamilies[name]) {
  				localeFamilies[name].forEach(function (x) {
  					defineLocale(x.name, x.config);
  				});
  			}
  
  			// backwards compat for now: also set the locale
  			// make sure we set the locale AFTER all child locales have been
  			// created, so we won't end up with the child locale set.
  			getSetGlobalLocale(name);
  
  
  			return locales[name];
  		} else {
  			// useful for testing
  			delete locales[name];
  			return null;
  		}
  	}
  
  	function updateLocale(name, config) {
  		if (config != null) {
  			var locale, tmpLocale, parentConfig = baseConfig;
  			// MERGE
  			tmpLocale = loadLocale(name);
  			if (tmpLocale != null) {
  				parentConfig = tmpLocale._config;
  			}
  			config = mergeConfigs(parentConfig, config);
  			locale = new Locale(config);
  			locale.parentLocale = locales[name];
  			locales[name] = locale;
  
  			// backwards compat for now: also set the locale
  			getSetGlobalLocale(name);
  		} else {
  			// pass null for config to unupdate, useful for tests
  			if (locales[name] != null) {
  				if (locales[name].parentLocale != null) {
  					locales[name] = locales[name].parentLocale;
  				} else if (locales[name] != null) {
  					delete locales[name];
  				}
  			}
  		}
  		return locales[name];
  	}
  
  	// returns locale data
  	function getLocale(key) {
  		var locale;
  
  		if (key && key._locale && key._locale._abbr) {
  			key = key._locale._abbr;
  		}
  
  		if (!key) {
  			return globalLocale;
  		}
  
  		if (!isArray(key)) {
  			//short-circuit everything else
  			locale = loadLocale(key);
  			if (locale) {
  				return locale;
  			}
  			key = [key];
  		}
  
  		return chooseLocale(key);
  	}
  
  	function listLocales() {
  		return keys(locales);
  	}
  
  	function checkOverflow(m) {
  		var overflow;
  		var a = m._a;
  
  		if (a && getParsingFlags(m).overflow === -2) {
  			overflow =
  				a[MONTH] < 0 || a[MONTH] > 11 ? MONTH :
  				a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
  				a[HOUR] < 0 || a[HOUR] > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
  				a[MINUTE] < 0 || a[MINUTE] > 59 ? MINUTE :
  				a[SECOND] < 0 || a[SECOND] > 59 ? SECOND :
  				a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
  				-1;
  
  			if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
  				overflow = DATE;
  			}
  			if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
  				overflow = WEEK;
  			}
  			if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
  				overflow = WEEKDAY;
  			}
  
  			getParsingFlags(m).overflow = overflow;
  		}
  
  		return m;
  	}
  
  	// Pick the first defined of two or three arguments.
  	function defaults(a, b, c) {
  		if (a != null) {
  			return a;
  		}
  		if (b != null) {
  			return b;
  		}
  		return c;
  	}
  
  	function currentDateArray(config) {
  		// hooks is actually the exported moment object
  		var nowValue = new Date(hooks.now());
  		if (config._useUTC) {
  			return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
  		}
  		return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
  	}
  
  	// convert an array to a date.
  	// the array should mirror the parameters below
  	// note: all values past the year are optional and will default to the lowest possible value.
  	// [year, month, day , hour, minute, second, millisecond]
  	function configFromArray(config) {
  		var i, date, input = [],
  			currentDate, expectedWeekday, yearToUse;
  
  		if (config._d) {
  			return;
  		}
  
  		currentDate = currentDateArray(config);
  
  		//compute day of the year from weeks and weekdays
  		if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
  			dayOfYearFromWeekInfo(config);
  		}
  
  		//if the day of the year is set, figure out what it is
  		if (config._dayOfYear != null) {
  			yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);
  
  			if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
  				getParsingFlags(config)._overflowDayOfYear = true;
  			}
  
  			date = createUTCDate(yearToUse, 0, config._dayOfYear);
  			config._a[MONTH] = date.getUTCMonth();
  			config._a[DATE] = date.getUTCDate();
  		}
  
  		// Default to current date.
  		// * if no year, month, day of month are given, default to today
  		// * if day of month is given, default month and year
  		// * if month is given, default only year
  		// * if year is given, don't default anything
  		for (i = 0; i < 3 && config._a[i] == null; ++i) {
  			config._a[i] = input[i] = currentDate[i];
  		}
  
  		// Zero out whatever was not defaulted, including time
  		for (; i < 7; i++) {
  			config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
  		}
  
  		// Check for 24:00:00.000
  		if (config._a[HOUR] === 24 &&
  			config._a[MINUTE] === 0 &&
  			config._a[SECOND] === 0 &&
  			config._a[MILLISECOND] === 0) {
  			config._nextDay = true;
  			config._a[HOUR] = 0;
  		}
  
  		config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
  		expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();
  
  		// Apply timezone offset from input. The actual utcOffset can be changed
  		// with parseZone.
  		if (config._tzm != null) {
  			config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
  		}
  
  		if (config._nextDay) {
  			config._a[HOUR] = 24;
  		}
  
  		// check for mismatching day of week
  		if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
  			getParsingFlags(config).weekdayMismatch = true;
  		}
  	}
  
  	function dayOfYearFromWeekInfo(config) {
  		var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;
  
  		w = config._w;
  		if (w.GG != null || w.W != null || w.E != null) {
  			dow = 1;
  			doy = 4;
  
  			// TODO: We need to take the current isoWeekYear, but that depends on
  			// how we interpret now (local, utc, fixed offset). So create
  			// a now version of current config (take local/utc/offset flags, and
  			// create now).
  			weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
  			week = defaults(w.W, 1);
  			weekday = defaults(w.E, 1);
  			if (weekday < 1 || weekday > 7) {
  				weekdayOverflow = true;
  			}
  		} else {
  			dow = config._locale._week.dow;
  			doy = config._locale._week.doy;
  
  			var curWeek = weekOfYear(createLocal(), dow, doy);
  
  			weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);
  
  			// Default to current week.
  			week = defaults(w.w, curWeek.week);
  
  			if (w.d != null) {
  				// weekday -- low day numbers are considered next week
  				weekday = w.d;
  				if (weekday < 0 || weekday > 6) {
  					weekdayOverflow = true;
  				}
  			} else if (w.e != null) {
  				// local weekday -- counting starts from beginning of week
  				weekday = w.e + dow;
  				if (w.e < 0 || w.e > 6) {
  					weekdayOverflow = true;
  				}
  			} else {
  				// default to beginning of week
  				weekday = dow;
  			}
  		}
  		if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
  			getParsingFlags(config)._overflowWeeks = true;
  		} else if (weekdayOverflow != null) {
  			getParsingFlags(config)._overflowWeekday = true;
  		} else {
  			temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
  			config._a[YEAR] = temp.year;
  			config._dayOfYear = temp.dayOfYear;
  		}
  	}
  
  	// iso 8601 regex
  	// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
  	var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
  	var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
  
  	var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;
  
  	var isoDates = [
  		['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
  		['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
  		['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
  		['GGGG-[W]WW', /\d{4}-W\d\d/, false],
  		['YYYY-DDD', /\d{4}-\d{3}/],
  		['YYYY-MM', /\d{4}-\d\d/, false],
  		['YYYYYYMMDD', /[+-]\d{10}/],
  		['YYYYMMDD', /\d{8}/],
  		// YYYYMM is NOT allowed by the standard
  		['GGGG[W]WWE', /\d{4}W\d{3}/],
  		['GGGG[W]WW', /\d{4}W\d{2}/, false],
  		['YYYYDDD', /\d{7}/]
  	];
  
  	// iso time formats and regexes
  	var isoTimes = [
  		['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
  		['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
  		['HH:mm:ss', /\d\d:\d\d:\d\d/],
  		['HH:mm', /\d\d:\d\d/],
  		['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
  		['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
  		['HHmmss', /\d\d\d\d\d\d/],
  		['HHmm', /\d\d\d\d/],
  		['HH', /\d\d/]
  	];
  
  	var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
  
  	// date from iso format
  	function configFromISO(config) {
  		var i, l,
  			string = config._i,
  			match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
  			allowTime, dateFormat, timeFormat, tzFormat;
  
  		if (match) {
  			getParsingFlags(config).iso = true;
  
  			for (i = 0, l = isoDates.length; i < l; i++) {
  				if (isoDates[i][1].exec(match[1])) {
  					dateFormat = isoDates[i][0];
  					allowTime = isoDates[i][2] !== false;
  					break;
  				}
  			}
  			if (dateFormat == null) {
  				config._isValid = false;
  				return;
  			}
  			if (match[3]) {
  				for (i = 0, l = isoTimes.length; i < l; i++) {
  					if (isoTimes[i][1].exec(match[3])) {
  						// match[2] should be 'T' or space
  						timeFormat = (match[2] || ' ') + isoTimes[i][0];
  						break;
  					}
  				}
  				if (timeFormat == null) {
  					config._isValid = false;
  					return;
  				}
  			}
  			if (!allowTime && timeFormat != null) {
  				config._isValid = false;
  				return;
  			}
  			if (match[4]) {
  				if (tzRegex.exec(match[4])) {
  					tzFormat = 'Z';
  				} else {
  					config._isValid = false;
  					return;
  				}
  			}
  			config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
  			configFromStringAndFormat(config);
  		} else {
  			config._isValid = false;
  		}
  	}
  
  	// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
  	var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;
  
  	function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
  		var result = [
  			untruncateYear(yearStr),
  			defaultLocaleMonthsShort.indexOf(monthStr),
  			parseInt(dayStr, 10),
  			parseInt(hourStr, 10),
  			parseInt(minuteStr, 10)
  		];
  
  		if (secondStr) {
  			result.push(parseInt(secondStr, 10));
  		}
  
  		return result;
  	}
  
  	function untruncateYear(yearStr) {
  		var year = parseInt(yearStr, 10);
  		if (year <= 49) {
  			return 2000 + year;
  		} else if (year <= 999) {
  			return 1900 + year;
  		}
  		return year;
  	}
  
  	function preprocessRFC2822(s) {
  		// Remove comments and folding whitespace and replace multiple-spaces with a single space
  		return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
  	}
  
  	function checkWeekday(weekdayStr, parsedInput, config) {
  		if (weekdayStr) {
  			// TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
  			var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
  				weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
  			if (weekdayProvided !== weekdayActual) {
  				getParsingFlags(config).weekdayMismatch = true;
  				config._isValid = false;
  				return false;
  			}
  		}
  		return true;
  	}
  
  	var obsOffsets = {
  		UT: 0,
  		GMT: 0,
  		EDT: -4 * 60,
  		EST: -5 * 60,
  		CDT: -5 * 60,
  		CST: -6 * 60,
  		MDT: -6 * 60,
  		MST: -7 * 60,
  		PDT: -7 * 60,
  		PST: -8 * 60
  	};
  
  	function calculateOffset(obsOffset, militaryOffset, numOffset) {
  		if (obsOffset) {
  			return obsOffsets[obsOffset];
  		} else if (militaryOffset) {
  			// the only allowed military tz is Z
  			return 0;
  		} else {
  			var hm = parseInt(numOffset, 10);
  			var m = hm % 100,
  				h = (hm - m) / 100;
  			return h * 60 + m;
  		}
  	}
  
  	// date and time from ref 2822 format
  	function configFromRFC2822(config) {
  		var match = rfc2822.exec(preprocessRFC2822(config._i));
  		if (match) {
  			var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
  			if (!checkWeekday(match[1], parsedArray, config)) {
  				return;
  			}
  
  			config._a = parsedArray;
  			config._tzm = calculateOffset(match[8], match[9], match[10]);
  
  			config._d = createUTCDate.apply(null, config._a);
  			config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
  
  			getParsingFlags(config).rfc2822 = true;
  		} else {
  			config._isValid = false;
  		}
  	}
  
  	// date from iso format or fallback
  	function configFromString(config) {
  		var matched = aspNetJsonRegex.exec(config._i);
  
  		if (matched !== null) {
  			config._d = new Date(+matched[1]);
  			return;
  		}
  
  		configFromISO(config);
  		if (config._isValid === false) {
  			delete config._isValid;
  		} else {
  			return;
  		}
  
  		configFromRFC2822(config);
  		if (config._isValid === false) {
  			delete config._isValid;
  		} else {
  			return;
  		}
  
  		// Final attempt, use Input Fallback
  		hooks.createFromInputFallback(config);
  	}
  
  	hooks.createFromInputFallback = deprecate(
  		'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
  		'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
  		'discouraged and will be removed in an upcoming major release. Please refer to ' +
  		'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
  		function (config) {
  			config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
  		}
  	);
  
  	// constant that refers to the ISO standard
  	hooks.ISO_8601 = function () {};
  
  	// constant that refers to the RFC 2822 form
  	hooks.RFC_2822 = function () {};
  
  	// date from string and format string
  	function configFromStringAndFormat(config) {
  		// TODO: Move this to another part of the creation flow to prevent circular deps
  		if (config._f === hooks.ISO_8601) {
  			configFromISO(config);
  			return;
  		}
  		if (config._f === hooks.RFC_2822) {
  			configFromRFC2822(config);
  			return;
  		}
  		config._a = [];
  		getParsingFlags(config).empty = true;
  
  		// This array is used to make a Date, either with `new Date` or `Date.UTC`
  		var string = '' + config._i,
  			i, parsedInput, tokens, token, skipped,
  			stringLength = string.length,
  			totalParsedInputLength = 0;
  
  		tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];
  
  		for (i = 0; i < tokens.length; i++) {
  			token = tokens[i];
  			parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
  			// console.log('token', token, 'parsedInput', parsedInput,
  			//         'regex', getParseRegexForToken(token, config));
  			if (parsedInput) {
  				skipped = string.substr(0, string.indexOf(parsedInput));
  				if (skipped.length > 0) {
  					getParsingFlags(config).unusedInput.push(skipped);
  				}
  				string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
  				totalParsedInputLength += parsedInput.length;
  			}
  			// don't parse if it's not a known token
  			if (formatTokenFunctions[token]) {
  				if (parsedInput) {
  					getParsingFlags(config).empty = false;
  				} else {
  					getParsingFlags(config).unusedTokens.push(token);
  				}
  				addTimeToArrayFromToken(token, parsedInput, config);
  			} else if (config._strict && !parsedInput) {
  				getParsingFlags(config).unusedTokens.push(token);
  			}
  		}
  
  		// add remaining unparsed input length to the string
  		getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
  		if (string.length > 0) {
  			getParsingFlags(config).unusedInput.push(string);
  		}
  
  		// clear _12h flag if hour is <= 12
  		if (config._a[HOUR] <= 12 &&
  			getParsingFlags(config).bigHour === true &&
  			config._a[HOUR] > 0) {
  			getParsingFlags(config).bigHour = undefined;
  		}
  
  		getParsingFlags(config).parsedDateParts = config._a.slice(0);
  		getParsingFlags(config).meridiem = config._meridiem;
  		// handle meridiem
  		config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);
  
  		configFromArray(config);
  		checkOverflow(config);
  	}
  
  
  	function meridiemFixWrap(locale, hour, meridiem) {
  		var isPm;
  
  		if (meridiem == null) {
  			// nothing to do
  			return hour;
  		}
  		if (locale.meridiemHour != null) {
  			return locale.meridiemHour(hour, meridiem);
  		} else if (locale.isPM != null) {
  			// Fallback
  			isPm = locale.isPM(meridiem);
  			if (isPm && hour < 12) {
  				hour += 12;
  			}
  			if (!isPm && hour === 12) {
  				hour = 0;
  			}
  			return hour;
  		} else {
  			// this is not supposed to happen
  			return hour;
  		}
  	}
  
  	// date from string and array of format strings
  	function configFromStringAndArray(config) {
  		var tempConfig,
  			bestMoment,
  
  			scoreToBeat,
  			i,
  			currentScore;
  
  		if (config._f.length === 0) {
  			getParsingFlags(config).invalidFormat = true;
  			config._d = new Date(NaN);
  			return;
  		}
  
  		for (i = 0; i < config._f.length; i++) {
  			currentScore = 0;
  			tempConfig = copyConfig({}, config);
  			if (config._useUTC != null) {
  				tempConfig._useUTC = config._useUTC;
  			}
  			tempConfig._f = config._f[i];
  			configFromStringAndFormat(tempConfig);
  
  			if (!isValid(tempConfig)) {
  				continue;
  			}
  
  			// if there is any input that was not parsed add a penalty for that format
  			currentScore += getParsingFlags(tempConfig).charsLeftOver;
  
  			//or tokens
  			currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;
  
  			getParsingFlags(tempConfig).score = currentScore;
  
  			if (scoreToBeat == null || currentScore < scoreToBeat) {
  				scoreToBeat = currentScore;
  				bestMoment = tempConfig;
  			}
  		}
  
  		extend(config, bestMoment || tempConfig);
  	}
  
  	function configFromObject(config) {
  		if (config._d) {
  			return;
  		}
  
  		var i = normalizeObjectUnits(config._i);
  		config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
  			return obj && parseInt(obj, 10);
  		});
  
  		configFromArray(config);
  	}
  
  	function createFromConfig(config) {
  		var res = new Moment(checkOverflow(prepareConfig(config)));
  		if (res._nextDay) {
  			// Adding is smart enough around DST
  			res.add(1, 'd');
  			res._nextDay = undefined;
  		}
  
  		return res;
  	}
  
  	function prepareConfig(config) {
  		var input = config._i,
  			format = config._f;
  
  		config._locale = config._locale || getLocale(config._l);
  
  		if (input === null || (format === undefined && input === '')) {
  			return createInvalid({
  				nullInput: true
  			});
  		}
  
  		if (typeof input === 'string') {
  			config._i = input = config._locale.preparse(input);
  		}
  
  		if (isMoment(input)) {
  			return new Moment(checkOverflow(input));
  		} else if (isDate(input)) {
  			config._d = input;
  		} else if (isArray(format)) {
  			configFromStringAndArray(config);
  		} else if (format) {
  			configFromStringAndFormat(config);
  		} else {
  			configFromInput(config);
  		}
  
  		if (!isValid(config)) {
  			config._d = null;
  		}
  
  		return config;
  	}
  
  	function configFromInput(config) {
  		var input = config._i;
  		if (isUndefined(input)) {
  			config._d = new Date(hooks.now());
  		} else if (isDate(input)) {
  			config._d = new Date(input.valueOf());
  		} else if (typeof input === 'string') {
  			configFromString(config);
  		} else if (isArray(input)) {
  			config._a = map(input.slice(0), function (obj) {
  				return parseInt(obj, 10);
  			});
  			configFromArray(config);
  		} else if (isObject(input)) {
  			configFromObject(config);
  		} else if (isNumber(input)) {
  			// from milliseconds
  			config._d = new Date(input);
  		} else {
  			hooks.createFromInputFallback(config);
  		}
  	}
  
  	function createLocalOrUTC(input, format, locale, strict, isUTC) {
  		var c = {};
  
  		if (locale === true || locale === false) {
  			strict = locale;
  			locale = undefined;
  		}
  
  		if ((isObject(input) && isObjectEmpty(input)) ||
  			(isArray(input) && input.length === 0)) {
  			input = undefined;
  		}
  		// object construction must be done this way.
  		// https://github.com/moment/moment/issues/1423
  		c._isAMomentObject = true;
  		c._useUTC = c._isUTC = isUTC;
  		c._l = locale;
  		c._i = input;
  		c._f = format;
  		c._strict = strict;
  
  		return createFromConfig(c);
  	}
  
  	function createLocal(input, format, locale, strict) {
  		return createLocalOrUTC(input, format, locale, strict, false);
  	}
  
  	var prototypeMin = deprecate(
  		'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
  		function () {
  			var other = createLocal.apply(null, arguments);
  			if (this.isValid() && other.isValid()) {
  				return other < this ? this : other;
  			} else {
  				return createInvalid();
  			}
  		}
  	);
  
  	var prototypeMax = deprecate(
  		'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
  		function () {
  			var other = createLocal.apply(null, arguments);
  			if (this.isValid() && other.isValid()) {
  				return other > this ? this : other;
  			} else {
  				return createInvalid();
  			}
  		}
  	);
  
  	// Pick a moment m from moments so that m[fn](other) is true for all
  	// other. This relies on the function fn to be transitive.
  	//
  	// moments should either be an array of moment objects or an array, whose
  	// first element is an array of moment objects.
  	function pickBy(fn, moments) {
  		var res, i;
  		if (moments.length === 1 && isArray(moments[0])) {
  			moments = moments[0];
  		}
  		if (!moments.length) {
  			return createLocal();
  		}
  		res = moments[0];
  		for (i = 1; i < moments.length; ++i) {
  			if (!moments[i].isValid() || moments[i][fn](res)) {
  				res = moments[i];
  			}
  		}
  		return res;
  	}
  
  	// TODO: Use [].sort instead?
  	function min() {
  		var args = [].slice.call(arguments, 0);
  
  		return pickBy('isBefore', args);
  	}
  
  	function max() {
  		var args = [].slice.call(arguments, 0);
  
  		return pickBy('isAfter', args);
  	}
  
  	var now = function () {
  		return Date.now ? Date.now() : +(new Date());
  	};
  
  	var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];
  
  	function isDurationValid(m) {
  		for (var key in m) {
  			if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
  				return false;
  			}
  		}
  
  		var unitHasDecimal = false;
  		for (var i = 0; i < ordering.length; ++i) {
  			if (m[ordering[i]]) {
  				if (unitHasDecimal) {
  					return false; // only allow non-integers for smallest unit
  				}
  				if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
  					unitHasDecimal = true;
  				}
  			}
  		}
  
  		return true;
  	}
  
  	function isValid$1() {
  		return this._isValid;
  	}
  
  	function createInvalid$1() {
  		return createDuration(NaN);
  	}
  
  	function Duration(duration) {
  		var normalizedInput = normalizeObjectUnits(duration),
  			years = normalizedInput.year || 0,
  			quarters = normalizedInput.quarter || 0,
  			months = normalizedInput.month || 0,
  			weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
  			days = normalizedInput.day || 0,
  			hours = normalizedInput.hour || 0,
  			minutes = normalizedInput.minute || 0,
  			seconds = normalizedInput.second || 0,
  			milliseconds = normalizedInput.millisecond || 0;
  
  		this._isValid = isDurationValid(normalizedInput);
  
  		// representation for dateAddRemove
  		this._milliseconds = +milliseconds +
  			seconds * 1e3 + // 1000
  			minutes * 6e4 + // 1000 * 60
  			hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
  		// Because of dateAddRemove treats 24 hours as different from a
  		// day when working around DST, we need to store them separately
  		this._days = +days +
  			weeks * 7;
  		// It is impossible to translate months into days without knowing
  		// which months you are are talking about, so we have to store
  		// it separately.
  		this._months = +months +
  			quarters * 3 +
  			years * 12;
  
  		this._data = {};
  
  		this._locale = getLocale();
  
  		this._bubble();
  	}
  
  	function isDuration(obj) {
  		return obj instanceof Duration;
  	}
  
  	function absRound(number) {
  		if (number < 0) {
  			return Math.round(-1 * number) * -1;
  		} else {
  			return Math.round(number);
  		}
  	}
  
  	// FORMATTING
  
  	function offset(token, separator) {
  		addFormatToken(token, 0, 0, function () {
  			var offset = this.utcOffset();
  			var sign = '+';
  			if (offset < 0) {
  				offset = -offset;
  				sign = '-';
  			}
  			return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
  		});
  	}
  
  	offset('Z', ':');
  	offset('ZZ', '');
  
  	// PARSING
  
  	addRegexToken('Z', matchShortOffset);
  	addRegexToken('ZZ', matchShortOffset);
  	addParseToken(['Z', 'ZZ'], function (input, array, config) {
  		config._useUTC = true;
  		config._tzm = offsetFromString(matchShortOffset, input);
  	});
  
  	// HELPERS
  
  	// timezone chunker
  	// '+10:00' > ['10',  '00']
  	// '-1530'  > ['-15', '30']
  	var chunkOffset = /([\+\-]|\d\d)/gi;
  
  	function offsetFromString(matcher, string) {
  		var matches = (string || '').match(matcher);
  
  		if (matches === null) {
  			return null;
  		}
  
  		var chunk = matches[matches.length - 1] || [];
  		var parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
  		var minutes = +(parts[1] * 60) + toInt(parts[2]);
  
  		return minutes === 0 ?
  			0 :
  			parts[0] === '+' ? minutes : -minutes;
  	}
  
  	// Return a moment from input, that is local/utc/zone equivalent to model.
  	function cloneWithOffset(input, model) {
  		var res, diff;
  		if (model._isUTC) {
  			res = model.clone();
  			diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
  			// Use low-level api, because this fn is low-level api.
  			res._d.setTime(res._d.valueOf() + diff);
  			hooks.updateOffset(res, false);
  			return res;
  		} else {
  			return createLocal(input).local();
  		}
  	}
  
  	function getDateOffset(m) {
  		// On Firefox.24 Date#getTimezoneOffset returns a floating point.
  		// https://github.com/moment/moment/pull/1871
  		return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
  	}
  
  	// HOOKS
  
  	// This function will be called whenever a moment is mutated.
  	// It is intended to keep the offset in sync with the timezone.
  	hooks.updateOffset = function () {};
  
  	// MOMENTS
  
  	// keepLocalTime = true means only change the timezone, without
  	// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
  	// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
  	// +0200, so we adjust the time as needed, to be valid.
  	//
  	// Keeping the time actually adds/subtracts (one hour)
  	// from the actual represented time. That is why we call updateOffset
  	// a second time. In case it wants us to change the offset again
  	// _changeInProgress == true case, then we have to adjust, because
  	// there is no such time in the given timezone.
  	function getSetOffset(input, keepLocalTime, keepMinutes) {
  		var offset = this._offset || 0,
  			localAdjust;
  		if (!this.isValid()) {
  			return input != null ? this : NaN;
  		}
  		if (input != null) {
  			if (typeof input === 'string') {
  				input = offsetFromString(matchShortOffset, input);
  				if (input === null) {
  					return this;
  				}
  			} else if (Math.abs(input) < 16 && !keepMinutes) {
  				input = input * 60;
  			}
  			if (!this._isUTC && keepLocalTime) {
  				localAdjust = getDateOffset(this);
  			}
  			this._offset = input;
  			this._isUTC = true;
  			if (localAdjust != null) {
  				this.add(localAdjust, 'm');
  			}
  			if (offset !== input) {
  				if (!keepLocalTime || this._changeInProgress) {
  					addSubtract(this, createDuration(input - offset, 'm'), 1, false);
  				} else if (!this._changeInProgress) {
  					this._changeInProgress = true;
  					hooks.updateOffset(this, true);
  					this._changeInProgress = null;
  				}
  			}
  			return this;
  		} else {
  			return this._isUTC ? offset : getDateOffset(this);
  		}
  	}
  
  	function getSetZone(input, keepLocalTime) {
  		if (input != null) {
  			if (typeof input !== 'string') {
  				input = -input;
  			}
  
  			this.utcOffset(input, keepLocalTime);
  
  			return this;
  		} else {
  			return -this.utcOffset();
  		}
  	}
  
  	function setOffsetToUTC(keepLocalTime) {
  		return this.utcOffset(0, keepLocalTime);
  	}
  
  	function setOffsetToLocal(keepLocalTime) {
  		if (this._isUTC) {
  			this.utcOffset(0, keepLocalTime);
  			this._isUTC = false;
  
  			if (keepLocalTime) {
  				this.subtract(getDateOffset(this), 'm');
  			}
  		}
  		return this;
  	}
  
  	function setOffsetToParsedOffset() {
  		if (this._tzm != null) {
  			this.utcOffset(this._tzm, false, true);
  		} else if (typeof this._i === 'string') {
  			var tZone = offsetFromString(matchOffset, this._i);
  			if (tZone != null) {
  				this.utcOffset(tZone);
  			} else {
  				this.utcOffset(0, true);
  			}
  		}
  		return this;
  	}
  
  	function hasAlignedHourOffset(input) {
  		if (!this.isValid()) {
  			return false;
  		}
  		input = input ? createLocal(input).utcOffset() : 0;
  
  		return (this.utcOffset() - input) % 60 === 0;
  	}
  
  	function isDaylightSavingTime() {
  		return (
  			this.utcOffset() > this.clone().month(0).utcOffset() ||
  			this.utcOffset() > this.clone().month(5).utcOffset()
  		);
  	}
  
  	function isDaylightSavingTimeShifted() {
  		if (!isUndefined(this._isDSTShifted)) {
  			return this._isDSTShifted;
  		}
  
  		var c = {};
  
  		copyConfig(c, this);
  		c = prepareConfig(c);
  
  		if (c._a) {
  			var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
  			this._isDSTShifted = this.isValid() &&
  				compareArrays(c._a, other.toArray()) > 0;
  		} else {
  			this._isDSTShifted = false;
  		}
  
  		return this._isDSTShifted;
  	}
  
  	function isLocal() {
  		return this.isValid() ? !this._isUTC : false;
  	}
  
  	function isUtcOffset() {
  		return this.isValid() ? this._isUTC : false;
  	}
  
  	function isUtc() {
  		return this.isValid() ? this._isUTC && this._offset === 0 : false;
  	}
  
  	// ASP.NET json date format regex
  	var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;
  
  	// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
  	// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
  	// and further modified to allow for strings containing both week and day
  	var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;
  
  	function createDuration(input, key) {
  		var duration = input,
  			// matching against regexp is expensive, do it on demand
  			match = null,
  			sign,
  			ret,
  			diffRes;
  
  		if (isDuration(input)) {
  			duration = {
  				ms: input._milliseconds,
  				d: input._days,
  				M: input._months
  			};
  		} else if (isNumber(input)) {
  			duration = {};
  			if (key) {
  				duration[key] = input;
  			} else {
  				duration.milliseconds = input;
  			}
  		} else if (!!(match = aspNetRegex.exec(input))) {
  			sign = (match[1] === '-') ? -1 : 1;
  			duration = {
  				y: 0,
  				d: toInt(match[DATE]) * sign,
  				h: toInt(match[HOUR]) * sign,
  				m: toInt(match[MINUTE]) * sign,
  				s: toInt(match[SECOND]) * sign,
  				ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
  			};
  		} else if (!!(match = isoRegex.exec(input))) {
  			sign = (match[1] === '-') ? -1 : 1;
  			duration = {
  				y: parseIso(match[2], sign),
  				M: parseIso(match[3], sign),
  				w: parseIso(match[4], sign),
  				d: parseIso(match[5], sign),
  				h: parseIso(match[6], sign),
  				m: parseIso(match[7], sign),
  				s: parseIso(match[8], sign)
  			};
  		} else if (duration == null) { // checks for null or undefined
  			duration = {};
  		} else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
  			diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));
  
  			duration = {};
  			duration.ms = diffRes.milliseconds;
  			duration.M = diffRes.months;
  		}
  
  		ret = new Duration(duration);
  
  		if (isDuration(input) && hasOwnProp(input, '_locale')) {
  			ret._locale = input._locale;
  		}
  
  		return ret;
  	}
  
  	createDuration.fn = Duration.prototype;
  	createDuration.invalid = createInvalid$1;
  
  	function parseIso(inp, sign) {
  		// We'd normally use ~~inp for this, but unfortunately it also
  		// converts floats to ints.
  		// inp may be undefined, so careful calling replace on it.
  		var res = inp && parseFloat(inp.replace(',', '.'));
  		// apply sign while we're at it
  		return (isNaN(res) ? 0 : res) * sign;
  	}
  
  	function positiveMomentsDifference(base, other) {
  		var res = {};
  
  		res.months = other.month() - base.month() +
  			(other.year() - base.year()) * 12;
  		if (base.clone().add(res.months, 'M').isAfter(other)) {
  			--res.months;
  		}
  
  		res.milliseconds = +other - +(base.clone().add(res.months, 'M'));
  
  		return res;
  	}
  
  	function momentsDifference(base, other) {
  		var res;
  		if (!(base.isValid() && other.isValid())) {
  			return {
  				milliseconds: 0,
  				months: 0
  			};
  		}
  
  		other = cloneWithOffset(other, base);
  		if (base.isBefore(other)) {
  			res = positiveMomentsDifference(base, other);
  		} else {
  			res = positiveMomentsDifference(other, base);
  			res.milliseconds = -res.milliseconds;
  			res.months = -res.months;
  		}
  
  		return res;
  	}
  
  	// TODO: remove 'name' arg after deprecation is removed
  	function createAdder(direction, name) {
  		return function (val, period) {
  			var dur, tmp;
  			//invert the arguments, but complain about it
  			if (period !== null && !isNaN(+period)) {
  				deprecateSimple(name, 'moment().' + name + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
  					'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
  				tmp = val;
  				val = period;
  				period = tmp;
  			}
  
  			val = typeof val === 'string' ? +val : val;
  			dur = createDuration(val, period);
  			addSubtract(this, dur, direction);
  			return this;
  		};
  	}
  
  	function addSubtract(mom, duration, isAdding, updateOffset) {
  		var milliseconds = duration._milliseconds,
  			days = absRound(duration._days),
  			months = absRound(duration._months);
  
  		if (!mom.isValid()) {
  			// No op
  			return;
  		}
  
  		updateOffset = updateOffset == null ? true : updateOffset;
  
  		if (months) {
  			setMonth(mom, get(mom, 'Month') + months * isAdding);
  		}
  		if (days) {
  			set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
  		}
  		if (milliseconds) {
  			mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
  		}
  		if (updateOffset) {
  			hooks.updateOffset(mom, days || months);
  		}
  	}
  
  	var add = createAdder(1, 'add');
  	var subtract = createAdder(-1, 'subtract');
  
  	function getCalendarFormat(myMoment, now) {
  		var diff = myMoment.diff(now, 'days', true);
  		return diff < -6 ? 'sameElse' :
  			diff < -1 ? 'lastWeek' :
  			diff < 0 ? 'lastDay' :
  			diff < 1 ? 'sameDay' :
  			diff < 2 ? 'nextDay' :
  			diff < 7 ? 'nextWeek' : 'sameElse';
  	}
  
  	function calendar$1(time, formats) {
  		// We want to compare the start of today, vs this.
  		// Getting start-of-today depends on whether we're local/utc/offset or not.
  		var now = time || createLocal(),
  			sod = cloneWithOffset(now, this).startOf('day'),
  			format = hooks.calendarFormat(this, sod) || 'sameElse';
  
  		var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);
  
  		return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
  	}
  
  	function clone() {
  		return new Moment(this);
  	}
  
  	function isAfter(input, units) {
  		var localInput = isMoment(input) ? input : createLocal(input);
  		if (!(this.isValid() && localInput.isValid())) {
  			return false;
  		}
  		units = normalizeUnits(units) || 'millisecond';
  		if (units === 'millisecond') {
  			return this.valueOf() > localInput.valueOf();
  		} else {
  			return localInput.valueOf() < this.clone().startOf(units).valueOf();
  		}
  	}
  
  	function isBefore(input, units) {
  		var localInput = isMoment(input) ? input : createLocal(input);
  		if (!(this.isValid() && localInput.isValid())) {
  			return false;
  		}
  		units = normalizeUnits(units) || 'millisecond';
  		if (units === 'millisecond') {
  			return this.valueOf() < localInput.valueOf();
  		} else {
  			return this.clone().endOf(units).valueOf() < localInput.valueOf();
  		}
  	}
  
  	function isBetween(from, to, units, inclusivity) {
  		var localFrom = isMoment(from) ? from : createLocal(from),
  			localTo = isMoment(to) ? to : createLocal(to);
  		if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
  			return false;
  		}
  		inclusivity = inclusivity || '()';
  		return (inclusivity[0] === '(' ? this.isAfter(localFrom, units) : !this.isBefore(localFrom, units)) &&
  			(inclusivity[1] === ')' ? this.isBefore(localTo, units) : !this.isAfter(localTo, units));
  	}
  
  	function isSame(input, units) {
  		var localInput = isMoment(input) ? input : createLocal(input),
  			inputMs;
  		if (!(this.isValid() && localInput.isValid())) {
  			return false;
  		}
  		units = normalizeUnits(units) || 'millisecond';
  		if (units === 'millisecond') {
  			return this.valueOf() === localInput.valueOf();
  		} else {
  			inputMs = localInput.valueOf();
  			return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
  		}
  	}
  
  	function isSameOrAfter(input, units) {
  		return this.isSame(input, units) || this.isAfter(input, units);
  	}
  
  	function isSameOrBefore(input, units) {
  		return this.isSame(input, units) || this.isBefore(input, units);
  	}
  
  	function diff(input, units, asFloat) {
  		var that,
  			zoneDelta,
  			output;
  
  		if (!this.isValid()) {
  			return NaN;
  		}
  
  		that = cloneWithOffset(input, this);
  
  		if (!that.isValid()) {
  			return NaN;
  		}
  
  		zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;
  
  		units = normalizeUnits(units);
  
  		switch (units) {
  			case 'year':
  				output = monthDiff(this, that) / 12;
  				break;
  			case 'month':
  				output = monthDiff(this, that);
  				break;
  			case 'quarter':
  				output = monthDiff(this, that) / 3;
  				break;
  			case 'second':
  				output = (this - that) / 1e3;
  				break; // 1000
  			case 'minute':
  				output = (this - that) / 6e4;
  				break; // 1000 * 60
  			case 'hour':
  				output = (this - that) / 36e5;
  				break; // 1000 * 60 * 60
  			case 'day':
  				output = (this - that - zoneDelta) / 864e5;
  				break; // 1000 * 60 * 60 * 24, negate dst
  			case 'week':
  				output = (this - that - zoneDelta) / 6048e5;
  				break; // 1000 * 60 * 60 * 24 * 7, negate dst
  			default:
  				output = this - that;
  		}
  
  		return asFloat ? output : absFloor(output);
  	}
  
  	function monthDiff(a, b) {
  		// difference in months
  		var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
  			// b is in (anchor - 1 month, anchor + 1 month)
  			anchor = a.clone().add(wholeMonthDiff, 'months'),
  			anchor2, adjust;
  
  		if (b - anchor < 0) {
  			anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
  			// linear across the month
  			adjust = (b - anchor) / (anchor - anchor2);
  		} else {
  			anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
  			// linear across the month
  			adjust = (b - anchor) / (anchor2 - anchor);
  		}
  
  		//check for negative zero, return zero if negative zero
  		return -(wholeMonthDiff + adjust) || 0;
  	}
  
  	hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
  	hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';
  
  	function toString() {
  		return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
  	}
  
  	function toISOString(keepOffset) {
  		if (!this.isValid()) {
  			return null;
  		}
  		var utc = keepOffset !== true;
  		var m = utc ? this.clone().utc() : this;
  		if (m.year() < 0 || m.year() > 9999) {
  			return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
  		}
  		if (isFunction(Date.prototype.toISOString)) {
  			// native implementation is ~50x faster, use it when we can
  			if (utc) {
  				return this.toDate().toISOString();
  			} else {
  				return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
  			}
  		}
  		return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
  	}
  
  	/**
  	 * Return a human readable representation of a moment that can
  	 * also be evaluated to get a new moment which is the same
  	 *
  	 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
  	 */
  	function inspect() {
  		if (!this.isValid()) {
  			return 'moment.invalid(/* ' + this._i + ' */)';
  		}
  		var func = 'moment';
  		var zone = '';
  		if (!this.isLocal()) {
  			func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
  			zone = 'Z';
  		}
  		var prefix = '[' + func + '("]';
  		var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
  		var datetime = '-MM-DD[T]HH:mm:ss.SSS';
  		var suffix = zone + '[")]';
  
  		return this.format(prefix + year + datetime + suffix);
  	}
  
  	function format(inputString) {
  		if (!inputString) {
  			inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
  		}
  		var output = formatMoment(this, inputString);
  		return this.localeData().postformat(output);
  	}
  
  	function from(time, withoutSuffix) {
  		if (this.isValid() &&
  			((isMoment(time) && time.isValid()) ||
  				createLocal(time).isValid())) {
  			return createDuration({
  				to: this,
  				from: time
  			}).locale(this.locale()).humanize(!withoutSuffix);
  		} else {
  			return this.localeData().invalidDate();
  		}
  	}
  
  	function fromNow(withoutSuffix) {
  		return this.from(createLocal(), withoutSuffix);
  	}
  
  	function to(time, withoutSuffix) {
  		if (this.isValid() &&
  			((isMoment(time) && time.isValid()) ||
  				createLocal(time).isValid())) {
  			return createDuration({
  				from: this,
  				to: time
  			}).locale(this.locale()).humanize(!withoutSuffix);
  		} else {
  			return this.localeData().invalidDate();
  		}
  	}
  
  	function toNow(withoutSuffix) {
  		return this.to(createLocal(), withoutSuffix);
  	}
  
  	// If passed a locale key, it will set the locale for this
  	// instance.  Otherwise, it will return the locale configuration
  	// variables for this instance.
  	function locale(key) {
  		var newLocaleData;
  
  		if (key === undefined) {
  			return this._locale._abbr;
  		} else {
  			newLocaleData = getLocale(key);
  			if (newLocaleData != null) {
  				this._locale = newLocaleData;
  			}
  			return this;
  		}
  	}
  
  	var lang = deprecate(
  		'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
  		function (key) {
  			if (key === undefined) {
  				return this.localeData();
  			} else {
  				return this.locale(key);
  			}
  		}
  	);
  
  	function localeData() {
  		return this._locale;
  	}
  
  	var MS_PER_SECOND = 1000;
  	var MS_PER_MINUTE = 60 * MS_PER_SECOND;
  	var MS_PER_HOUR = 60 * MS_PER_MINUTE;
  	var MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;
  
  	// actual modulo - handles negative numbers (for dates before 1970):
  	function mod$1(dividend, divisor) {
  		return (dividend % divisor + divisor) % divisor;
  	}
  
  	function localStartOfDate(y, m, d) {
  		// the date constructor remaps years 0-99 to 1900-1999
  		if (y < 100 && y >= 0) {
  			// preserve leap years using a full 400 year cycle, then reset
  			return new Date(y + 400, m, d) - MS_PER_400_YEARS;
  		} else {
  			return new Date(y, m, d).valueOf();
  		}
  	}
  
  	function utcStartOfDate(y, m, d) {
  		// Date.UTC remaps years 0-99 to 1900-1999
  		if (y < 100 && y >= 0) {
  			// preserve leap years using a full 400 year cycle, then reset
  			return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
  		} else {
  			return Date.UTC(y, m, d);
  		}
  	}
  
  	function startOf(units) {
  		var time;
  		units = normalizeUnits(units);
  		if (units === undefined || units === 'millisecond' || !this.isValid()) {
  			return this;
  		}
  
  		var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
  
  		switch (units) {
  			case 'year':
  				time = startOfDate(this.year(), 0, 1);
  				break;
  			case 'quarter':
  				time = startOfDate(this.year(), this.month() - this.month() % 3, 1);
  				break;
  			case 'month':
  				time = startOfDate(this.year(), this.month(), 1);
  				break;
  			case 'week':
  				time = startOfDate(this.year(), this.month(), this.date() - this.weekday());
  				break;
  			case 'isoWeek':
  				time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1));
  				break;
  			case 'day':
  			case 'date':
  				time = startOfDate(this.year(), this.month(), this.date());
  				break;
  			case 'hour':
  				time = this._d.valueOf();
  				time -= mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR);
  				break;
  			case 'minute':
  				time = this._d.valueOf();
  				time -= mod$1(time, MS_PER_MINUTE);
  				break;
  			case 'second':
  				time = this._d.valueOf();
  				time -= mod$1(time, MS_PER_SECOND);
  				break;
  		}
  
  		this._d.setTime(time);
  		hooks.updateOffset(this, true);
  		return this;
  	}
  
  	function endOf(units) {
  		var time;
  		units = normalizeUnits(units);
  		if (units === undefined || units === 'millisecond' || !this.isValid()) {
  			return this;
  		}
  
  		var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;
  
  		switch (units) {
  			case 'year':
  				time = startOfDate(this.year() + 1, 0, 1) - 1;
  				break;
  			case 'quarter':
  				time = startOfDate(this.year(), this.month() - this.month() % 3 + 3, 1) - 1;
  				break;
  			case 'month':
  				time = startOfDate(this.year(), this.month() + 1, 1) - 1;
  				break;
  			case 'week':
  				time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1;
  				break;
  			case 'isoWeek':
  				time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1;
  				break;
  			case 'day':
  			case 'date':
  				time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
  				break;
  			case 'hour':
  				time = this._d.valueOf();
  				time += MS_PER_HOUR - mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1;
  				break;
  			case 'minute':
  				time = this._d.valueOf();
  				time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
  				break;
  			case 'second':
  				time = this._d.valueOf();
  				time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
  				break;
  		}
  
  		this._d.setTime(time);
  		hooks.updateOffset(this, true);
  		return this;
  	}
  
  	function valueOf() {
  		return this._d.valueOf() - ((this._offset || 0) * 60000);
  	}
  
  	function unix() {
  		return Math.floor(this.valueOf() / 1000);
  	}
  
  	function toDate() {
  		return new Date(this.valueOf());
  	}
  
  	function toArray() {
  		var m = this;
  		return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
  	}
  
  	function toObject() {
  		var m = this;
  		return {
  			years: m.year(),
  			months: m.month(),
  			date: m.date(),
  			hours: m.hours(),
  			minutes: m.minutes(),
  			seconds: m.seconds(),
  			milliseconds: m.milliseconds()
  		};
  	}
  
  	function toJSON() {
  		// new Date(NaN).toJSON() === null
  		return this.isValid() ? this.toISOString() : null;
  	}
  
  	function isValid$2() {
  		return isValid(this);
  	}
  
  	function parsingFlags() {
  		return extend({}, getParsingFlags(this));
  	}
  
  	function invalidAt() {
  		return getParsingFlags(this).overflow;
  	}
  
  	function creationData() {
  		return {
  			input: this._i,
  			format: this._f,
  			locale: this._locale,
  			isUTC: this._isUTC,
  			strict: this._strict
  		};
  	}
  
  	// FORMATTING
  
  	addFormatToken(0, ['gg', 2], 0, function () {
  		return this.weekYear() % 100;
  	});
  
  	addFormatToken(0, ['GG', 2], 0, function () {
  		return this.isoWeekYear() % 100;
  	});
  
  	function addWeekYearFormatToken(token, getter) {
  		addFormatToken(0, [token, token.length], 0, getter);
  	}
  
  	addWeekYearFormatToken('gggg', 'weekYear');
  	addWeekYearFormatToken('ggggg', 'weekYear');
  	addWeekYearFormatToken('GGGG', 'isoWeekYear');
  	addWeekYearFormatToken('GGGGG', 'isoWeekYear');
  
  	// ALIASES
  
  	addUnitAlias('weekYear', 'gg');
  	addUnitAlias('isoWeekYear', 'GG');
  
  	// PRIORITY
  
  	addUnitPriority('weekYear', 1);
  	addUnitPriority('isoWeekYear', 1);
  
  
  	// PARSING
  
  	addRegexToken('G', matchSigned);
  	addRegexToken('g', matchSigned);
  	addRegexToken('GG', match1to2, match2);
  	addRegexToken('gg', match1to2, match2);
  	addRegexToken('GGGG', match1to4, match4);
  	addRegexToken('gggg', match1to4, match4);
  	addRegexToken('GGGGG', match1to6, match6);
  	addRegexToken('ggggg', match1to6, match6);
  
  	addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
  		week[token.substr(0, 2)] = toInt(input);
  	});
  
  	addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
  		week[token] = hooks.parseTwoDigitYear(input);
  	});
  
  	// MOMENTS
  
  	function getSetWeekYear(input) {
  		return getSetWeekYearHelper.call(this,
  			input,
  			this.week(),
  			this.weekday(),
  			this.localeData()._week.dow,
  			this.localeData()._week.doy);
  	}
  
  	function getSetISOWeekYear(input) {
  		return getSetWeekYearHelper.call(this,
  			input, this.isoWeek(), this.isoWeekday(), 1, 4);
  	}
  
  	function getISOWeeksInYear() {
  		return weeksInYear(this.year(), 1, 4);
  	}
  
  	function getWeeksInYear() {
  		var weekInfo = this.localeData()._week;
  		return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
  	}
  
  	function getSetWeekYearHelper(input, week, weekday, dow, doy) {
  		var weeksTarget;
  		if (input == null) {
  			return weekOfYear(this, dow, doy).year;
  		} else {
  			weeksTarget = weeksInYear(input, dow, doy);
  			if (week > weeksTarget) {
  				week = weeksTarget;
  			}
  			return setWeekAll.call(this, input, week, weekday, dow, doy);
  		}
  	}
  
  	function setWeekAll(weekYear, week, weekday, dow, doy) {
  		var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
  			date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
  
  		this.year(date.getUTCFullYear());
  		this.month(date.getUTCMonth());
  		this.date(date.getUTCDate());
  		return this;
  	}
  
  	// FORMATTING
  
  	addFormatToken('Q', 0, 'Qo', 'quarter');
  
  	// ALIASES
  
  	addUnitAlias('quarter', 'Q');
  
  	// PRIORITY
  
  	addUnitPriority('quarter', 7);
  
  	// PARSING
  
  	addRegexToken('Q', match1);
  	addParseToken('Q', function (input, array) {
  		array[MONTH] = (toInt(input) - 1) * 3;
  	});
  
  	// MOMENTS
  
  	function getSetQuarter(input) {
  		return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
  	}
  
  	// FORMATTING
  
  	addFormatToken('D', ['DD', 2], 'Do', 'date');
  
  	// ALIASES
  
  	addUnitAlias('date', 'D');
  
  	// PRIORITY
  	addUnitPriority('date', 9);
  
  	// PARSING
  
  	addRegexToken('D', match1to2);
  	addRegexToken('DD', match1to2, match2);
  	addRegexToken('Do', function (isStrict, locale) {
  		// TODO: Remove "ordinalParse" fallback in next major release.
  		return isStrict ?
  			(locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
  			locale._dayOfMonthOrdinalParseLenient;
  	});
  
  	addParseToken(['D', 'DD'], DATE);
  	addParseToken('Do', function (input, array) {
  		array[DATE] = toInt(input.match(match1to2)[0]);
  	});
  
  	// MOMENTS
  
  	var getSetDayOfMonth = makeGetSet('Date', true);
  
  	// FORMATTING
  
  	addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');
  
  	// ALIASES
  
  	addUnitAlias('dayOfYear', 'DDD');
  
  	// PRIORITY
  	addUnitPriority('dayOfYear', 4);
  
  	// PARSING
  
  	addRegexToken('DDD', match1to3);
  	addRegexToken('DDDD', match3);
  	addParseToken(['DDD', 'DDDD'], function (input, array, config) {
  		config._dayOfYear = toInt(input);
  	});
  
  	// HELPERS
  
  	// MOMENTS
  
  	function getSetDayOfYear(input) {
  		var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
  		return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
  	}
  
  	// FORMATTING
  
  	addFormatToken('m', ['mm', 2], 0, 'minute');
  
  	// ALIASES
  
  	addUnitAlias('minute', 'm');
  
  	// PRIORITY
  
  	addUnitPriority('minute', 14);
  
  	// PARSING
  
  	addRegexToken('m', match1to2);
  	addRegexToken('mm', match1to2, match2);
  	addParseToken(['m', 'mm'], MINUTE);
  
  	// MOMENTS
  
  	var getSetMinute = makeGetSet('Minutes', false);
  
  	// FORMATTING
  
  	addFormatToken('s', ['ss', 2], 0, 'second');
  
  	// ALIASES
  
  	addUnitAlias('second', 's');
  
  	// PRIORITY
  
  	addUnitPriority('second', 15);
  
  	// PARSING
  
  	addRegexToken('s', match1to2);
  	addRegexToken('ss', match1to2, match2);
  	addParseToken(['s', 'ss'], SECOND);
  
  	// MOMENTS
  
  	var getSetSecond = makeGetSet('Seconds', false);
  
  	// FORMATTING
  
  	addFormatToken('S', 0, 0, function () {
  		return ~~(this.millisecond() / 100);
  	});
  
  	addFormatToken(0, ['SS', 2], 0, function () {
  		return ~~(this.millisecond() / 10);
  	});
  
  	addFormatToken(0, ['SSS', 3], 0, 'millisecond');
  	addFormatToken(0, ['SSSS', 4], 0, function () {
  		return this.millisecond() * 10;
  	});
  	addFormatToken(0, ['SSSSS', 5], 0, function () {
  		return this.millisecond() * 100;
  	});
  	addFormatToken(0, ['SSSSSS', 6], 0, function () {
  		return this.millisecond() * 1000;
  	});
  	addFormatToken(0, ['SSSSSSS', 7], 0, function () {
  		return this.millisecond() * 10000;
  	});
  	addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
  		return this.millisecond() * 100000;
  	});
  	addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
  		return this.millisecond() * 1000000;
  	});
  
  
  	// ALIASES
  
  	addUnitAlias('millisecond', 'ms');
  
  	// PRIORITY
  
  	addUnitPriority('millisecond', 16);
  
  	// PARSING
  
  	addRegexToken('S', match1to3, match1);
  	addRegexToken('SS', match1to3, match2);
  	addRegexToken('SSS', match1to3, match3);
  
  	var token;
  	for (token = 'SSSS'; token.length <= 9; token += 'S') {
  		addRegexToken(token, matchUnsigned);
  	}
  
  	function parseMs(input, array) {
  		array[MILLISECOND] = toInt(('0.' + input) * 1000);
  	}
  
  	for (token = 'S'; token.length <= 9; token += 'S') {
  		addParseToken(token, parseMs);
  	}
  	// MOMENTS
  
  	var getSetMillisecond = makeGetSet('Milliseconds', false);
  
  	// FORMATTING
  
  	addFormatToken('z', 0, 0, 'zoneAbbr');
  	addFormatToken('zz', 0, 0, 'zoneName');
  
  	// MOMENTS
  
  	function getZoneAbbr() {
  		return this._isUTC ? 'UTC' : '';
  	}
  
  	function getZoneName() {
  		return this._isUTC ? 'Coordinated Universal Time' : '';
  	}
  
  	var proto = Moment.prototype;
  
  	proto.add = add;
  	proto.calendar = calendar$1;
  	proto.clone = clone;
  	proto.diff = diff;
  	proto.endOf = endOf;
  	proto.format = format;
  	proto.from = from;
  	proto.fromNow = fromNow;
  	proto.to = to;
  	proto.toNow = toNow;
  	proto.get = stringGet;
  	proto.invalidAt = invalidAt;
  	proto.isAfter = isAfter;
  	proto.isBefore = isBefore;
  	proto.isBetween = isBetween;
  	proto.isSame = isSame;
  	proto.isSameOrAfter = isSameOrAfter;
  	proto.isSameOrBefore = isSameOrBefore;
  	proto.isValid = isValid$2;
  	proto.lang = lang;
  	proto.locale = locale;
  	proto.localeData = localeData;
  	proto.max = prototypeMax;
  	proto.min = prototypeMin;
  	proto.parsingFlags = parsingFlags;
  	proto.set = stringSet;
  	proto.startOf = startOf;
  	proto.subtract = subtract;
  	proto.toArray = toArray;
  	proto.toObject = toObject;
  	proto.toDate = toDate;
  	proto.toISOString = toISOString;
  	proto.inspect = inspect;
  	proto.toJSON = toJSON;
  	proto.toString = toString;
  	proto.unix = unix;
  	proto.valueOf = valueOf;
  	proto.creationData = creationData;
  	proto.year = getSetYear;
  	proto.isLeapYear = getIsLeapYear;
  	proto.weekYear = getSetWeekYear;
  	proto.isoWeekYear = getSetISOWeekYear;
  	proto.quarter = proto.quarters = getSetQuarter;
  	proto.month = getSetMonth;
  	proto.daysInMonth = getDaysInMonth;
  	proto.week = proto.weeks = getSetWeek;
  	proto.isoWeek = proto.isoWeeks = getSetISOWeek;
  	proto.weeksInYear = getWeeksInYear;
  	proto.isoWeeksInYear = getISOWeeksInYear;
  	proto.date = getSetDayOfMonth;
  	proto.day = proto.days = getSetDayOfWeek;
  	proto.weekday = getSetLocaleDayOfWeek;
  	proto.isoWeekday = getSetISODayOfWeek;
  	proto.dayOfYear = getSetDayOfYear;
  	proto.hour = proto.hours = getSetHour;
  	proto.minute = proto.minutes = getSetMinute;
  	proto.second = proto.seconds = getSetSecond;
  	proto.millisecond = proto.milliseconds = getSetMillisecond;
  	proto.utcOffset = getSetOffset;
  	proto.utc = setOffsetToUTC;
  	proto.local = setOffsetToLocal;
  	proto.parseZone = setOffsetToParsedOffset;
  	proto.hasAlignedHourOffset = hasAlignedHourOffset;
  	proto.isDST = isDaylightSavingTime;
  	proto.isLocal = isLocal;
  	proto.isUtcOffset = isUtcOffset;
  	proto.isUtc = isUtc;
  	proto.isUTC = isUtc;
  	proto.zoneAbbr = getZoneAbbr;
  	proto.zoneName = getZoneName;
  	proto.dates = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
  	proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
  	proto.years = deprecate('years accessor is deprecated. Use year instead', getSetYear);
  	proto.zone = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
  	proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);
  
  	function createUnix(input) {
  		return createLocal(input * 1000);
  	}
  
  	function createInZone() {
  		return createLocal.apply(null, arguments).parseZone();
  	}
  
  	function preParsePostFormat(string) {
  		return string;
  	}
  
  	var proto$1 = Locale.prototype;
  
  	proto$1.calendar = calendar;
  	proto$1.longDateFormat = longDateFormat;
  	proto$1.invalidDate = invalidDate;
  	proto$1.ordinal = ordinal;
  	proto$1.preparse = preParsePostFormat;
  	proto$1.postformat = preParsePostFormat;
  	proto$1.relativeTime = relativeTime;
  	proto$1.pastFuture = pastFuture;
  	proto$1.set = set;
  
  	proto$1.months = localeMonths;
  	proto$1.monthsShort = localeMonthsShort;
  	proto$1.monthsParse = localeMonthsParse;
  	proto$1.monthsRegex = monthsRegex;
  	proto$1.monthsShortRegex = monthsShortRegex;
  	proto$1.week = localeWeek;
  	proto$1.firstDayOfYear = localeFirstDayOfYear;
  	proto$1.firstDayOfWeek = localeFirstDayOfWeek;
  
  	proto$1.weekdays = localeWeekdays;
  	proto$1.weekdaysMin = localeWeekdaysMin;
  	proto$1.weekdaysShort = localeWeekdaysShort;
  	proto$1.weekdaysParse = localeWeekdaysParse;
  
  	proto$1.weekdaysRegex = weekdaysRegex;
  	proto$1.weekdaysShortRegex = weekdaysShortRegex;
  	proto$1.weekdaysMinRegex = weekdaysMinRegex;
  
  	proto$1.isPM = localeIsPM;
  	proto$1.meridiem = localeMeridiem;
  
  	function get$1(format, index, field, setter) {
  		var locale = getLocale();
  		var utc = createUTC().set(setter, index);
  		return locale[field](utc, format);
  	}
  
  	function listMonthsImpl(format, index, field) {
  		if (isNumber(format)) {
  			index = format;
  			format = undefined;
  		}
  
  		format = format || '';
  
  		if (index != null) {
  			return get$1(format, index, field, 'month');
  		}
  
  		var i;
  		var out = [];
  		for (i = 0; i < 12; i++) {
  			out[i] = get$1(format, i, field, 'month');
  		}
  		return out;
  	}
  
  	// ()
  	// (5)
  	// (fmt, 5)
  	// (fmt)
  	// (true)
  	// (true, 5)
  	// (true, fmt, 5)
  	// (true, fmt)
  	function listWeekdaysImpl(localeSorted, format, index, field) {
  		if (typeof localeSorted === 'boolean') {
  			if (isNumber(format)) {
  				index = format;
  				format = undefined;
  			}
  
  			format = format || '';
  		} else {
  			format = localeSorted;
  			index = format;
  			localeSorted = false;
  
  			if (isNumber(format)) {
  				index = format;
  				format = undefined;
  			}
  
  			format = format || '';
  		}
  
  		var locale = getLocale(),
  			shift = localeSorted ? locale._week.dow : 0;
  
  		if (index != null) {
  			return get$1(format, (index + shift) % 7, field, 'day');
  		}
  
  		var i;
  		var out = [];
  		for (i = 0; i < 7; i++) {
  			out[i] = get$1(format, (i + shift) % 7, field, 'day');
  		}
  		return out;
  	}
  
  	function listMonths(format, index) {
  		return listMonthsImpl(format, index, 'months');
  	}
  
  	function listMonthsShort(format, index) {
  		return listMonthsImpl(format, index, 'monthsShort');
  	}
  
  	function listWeekdays(localeSorted, format, index) {
  		return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
  	}
  
  	function listWeekdaysShort(localeSorted, format, index) {
  		return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
  	}
  
  	function listWeekdaysMin(localeSorted, format, index) {
  		return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
  	}
  
  	getSetGlobalLocale('en', {
  		dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
  		ordinal: function (number) {
  			var b = number % 10,
  				output = (toInt(number % 100 / 10) === 1) ? 'th' :
  				(b === 1) ? 'st' :
  				(b === 2) ? 'nd' :
  				(b === 3) ? 'rd' : 'th';
  			return number + output;
  		}
  	});
  
  	// Side effect imports
  
  	hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
  	hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);
  
  	var mathAbs = Math.abs;
  
  	function abs() {
  		var data = this._data;
  
  		this._milliseconds = mathAbs(this._milliseconds);
  		this._days = mathAbs(this._days);
  		this._months = mathAbs(this._months);
  
  		data.milliseconds = mathAbs(data.milliseconds);
  		data.seconds = mathAbs(data.seconds);
  		data.minutes = mathAbs(data.minutes);
  		data.hours = mathAbs(data.hours);
  		data.months = mathAbs(data.months);
  		data.years = mathAbs(data.years);
  
  		return this;
  	}
  
  	function addSubtract$1(duration, input, value, direction) {
  		var other = createDuration(input, value);
  
  		duration._milliseconds += direction * other._milliseconds;
  		duration._days += direction * other._days;
  		duration._months += direction * other._months;
  
  		return duration._bubble();
  	}
  
  	// supports only 2.0-style add(1, 's') or add(duration)
  	function add$1(input, value) {
  		return addSubtract$1(this, input, value, 1);
  	}
  
  	// supports only 2.0-style subtract(1, 's') or subtract(duration)
  	function subtract$1(input, value) {
  		return addSubtract$1(this, input, value, -1);
  	}
  
  	function absCeil(number) {
  		if (number < 0) {
  			return Math.floor(number);
  		} else {
  			return Math.ceil(number);
  		}
  	}
  
  	function bubble() {
  		var milliseconds = this._milliseconds;
  		var days = this._days;
  		var months = this._months;
  		var data = this._data;
  		var seconds, minutes, hours, years, monthsFromDays;
  
  		// if we have a mix of positive and negative values, bubble down first
  		// check: https://github.com/moment/moment/issues/2166
  		if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
  				(milliseconds <= 0 && days <= 0 && months <= 0))) {
  			milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
  			days = 0;
  			months = 0;
  		}
  
  		// The following code bubbles up values, see the tests for
  		// examples of what that means.
  		data.milliseconds = milliseconds % 1000;
  
  		seconds = absFloor(milliseconds / 1000);
  		data.seconds = seconds % 60;
  
  		minutes = absFloor(seconds / 60);
  		data.minutes = minutes % 60;
  
  		hours = absFloor(minutes / 60);
  		data.hours = hours % 24;
  
  		days += absFloor(hours / 24);
  
  		// convert days to months
  		monthsFromDays = absFloor(daysToMonths(days));
  		months += monthsFromDays;
  		days -= absCeil(monthsToDays(monthsFromDays));
  
  		// 12 months -> 1 year
  		years = absFloor(months / 12);
  		months %= 12;
  
  		data.days = days;
  		data.months = months;
  		data.years = years;
  
  		return this;
  	}
  
  	function daysToMonths(days) {
  		// 400 years have 146097 days (taking into account leap year rules)
  		// 400 years have 12 months === 4800
  		return days * 4800 / 146097;
  	}
  
  	function monthsToDays(months) {
  		// the reverse of daysToMonths
  		return months * 146097 / 4800;
  	}
  
  	function as(units) {
  		if (!this.isValid()) {
  			return NaN;
  		}
  		var days;
  		var months;
  		var milliseconds = this._milliseconds;
  
  		units = normalizeUnits(units);
  
  		if (units === 'month' || units === 'quarter' || units === 'year') {
  			days = this._days + milliseconds / 864e5;
  			months = this._months + daysToMonths(days);
  			switch (units) {
  				case 'month':
  					return months;
  				case 'quarter':
  					return months / 3;
  				case 'year':
  					return months / 12;
  			}
  		} else {
  			// handle milliseconds separately because of floating point math errors (issue #1867)
  			days = this._days + Math.round(monthsToDays(this._months));
  			switch (units) {
  				case 'week':
  					return days / 7 + milliseconds / 6048e5;
  				case 'day':
  					return days + milliseconds / 864e5;
  				case 'hour':
  					return days * 24 + milliseconds / 36e5;
  				case 'minute':
  					return days * 1440 + milliseconds / 6e4;
  				case 'second':
  					return days * 86400 + milliseconds / 1000;
  					// Math.floor prevents floating point math errors here
  				case 'millisecond':
  					return Math.floor(days * 864e5) + milliseconds;
  				default:
  					throw new Error('Unknown unit ' + units);
  			}
  		}
  	}
  
  	// TODO: Use this.as('ms')?
  	function valueOf$1() {
  		if (!this.isValid()) {
  			return NaN;
  		}
  		return (
  			this._milliseconds +
  			this._days * 864e5 +
  			(this._months % 12) * 2592e6 +
  			toInt(this._months / 12) * 31536e6
  		);
  	}
  
  	function makeAs(alias) {
  		return function () {
  			return this.as(alias);
  		};
  	}
  
  	var asMilliseconds = makeAs('ms');
  	var asSeconds = makeAs('s');
  	var asMinutes = makeAs('m');
  	var asHours = makeAs('h');
  	var asDays = makeAs('d');
  	var asWeeks = makeAs('w');
  	var asMonths = makeAs('M');
  	var asQuarters = makeAs('Q');
  	var asYears = makeAs('y');
  
  	function clone$1() {
  		return createDuration(this);
  	}
  
  	function get$2(units) {
  		units = normalizeUnits(units);
  		return this.isValid() ? this[units + 's']() : NaN;
  	}
  
  	function makeGetter(name) {
  		return function () {
  			return this.isValid() ? this._data[name] : NaN;
  		};
  	}
  
  	var milliseconds = makeGetter('milliseconds');
  	var seconds = makeGetter('seconds');
  	var minutes = makeGetter('minutes');
  	var hours = makeGetter('hours');
  	var days = makeGetter('days');
  	var months = makeGetter('months');
  	var years = makeGetter('years');
  
  	function weeks() {
  		return absFloor(this.days() / 7);
  	}
  
  	var round = Math.round;
  	var thresholds = {
  		ss: 44, // a few seconds to seconds
  		s: 45, // seconds to minute
  		m: 45, // minutes to hour
  		h: 22, // hours to day
  		d: 26, // days to month
  		M: 11 // months to year
  	};
  
  	// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
  	function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
  		return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
  	}
  
  	function relativeTime$1(posNegDuration, withoutSuffix, locale) {
  		var duration = createDuration(posNegDuration).abs();
  		var seconds = round(duration.as('s'));
  		var minutes = round(duration.as('m'));
  		var hours = round(duration.as('h'));
  		var days = round(duration.as('d'));
  		var months = round(duration.as('M'));
  		var years = round(duration.as('y'));
  
  		var a = seconds <= thresholds.ss && ['s', seconds] ||
  			seconds < thresholds.s && ['ss', seconds] ||
  			minutes <= 1 && ['m'] ||
  			minutes < thresholds.m && ['mm', minutes] ||
  			hours <= 1 && ['h'] ||
  			hours < thresholds.h && ['hh', hours] ||
  			days <= 1 && ['d'] ||
  			days < thresholds.d && ['dd', days] ||
  			months <= 1 && ['M'] ||
  			months < thresholds.M && ['MM', months] ||
  			years <= 1 && ['y'] || ['yy', years];
  
  		a[2] = withoutSuffix;
  		a[3] = +posNegDuration > 0;
  		a[4] = locale;
  		return substituteTimeAgo.apply(null, a);
  	}
  
  	// This function allows you to set the rounding function for relative time strings
  	function getSetRelativeTimeRounding(roundingFunction) {
  		if (roundingFunction === undefined) {
  			return round;
  		}
  		if (typeof (roundingFunction) === 'function') {
  			round = roundingFunction;
  			return true;
  		}
  		return false;
  	}
  
  	// This function allows you to set a threshold for relative time strings
  	function getSetRelativeTimeThreshold(threshold, limit) {
  		if (thresholds[threshold] === undefined) {
  			return false;
  		}
  		if (limit === undefined) {
  			return thresholds[threshold];
  		}
  		thresholds[threshold] = limit;
  		if (threshold === 's') {
  			thresholds.ss = limit - 1;
  		}
  		return true;
  	}
  
  	function humanize(withSuffix) {
  		if (!this.isValid()) {
  			return this.localeData().invalidDate();
  		}
  
  		var locale = this.localeData();
  		var output = relativeTime$1(this, !withSuffix, locale);
  
  		if (withSuffix) {
  			output = locale.pastFuture(+this, output);
  		}
  
  		return locale.postformat(output);
  	}
  
  	var abs$1 = Math.abs;
  
  	function sign(x) {
  		return ((x > 0) - (x < 0)) || +x;
  	}
  
  	function toISOString$1() {
  		// for ISO strings we do not use the normal bubbling rules:
  		//  * milliseconds bubble up until they become hours
  		//  * days do not bubble at all
  		//  * months bubble up until they become years
  		// This is because there is no context-free conversion between hours and days
  		// (think of clock changes)
  		// and also not between days and months (28-31 days per month)
  		if (!this.isValid()) {
  			return this.localeData().invalidDate();
  		}
  
  		var seconds = abs$1(this._milliseconds) / 1000;
  		var days = abs$1(this._days);
  		var months = abs$1(this._months);
  		var minutes, hours, years;
  
  		// 3600 seconds -> 60 minutes -> 1 hour
  		minutes = absFloor(seconds / 60);
  		hours = absFloor(minutes / 60);
  		seconds %= 60;
  		minutes %= 60;
  
  		// 12 months -> 1 year
  		years = absFloor(months / 12);
  		months %= 12;
  
  
  		// inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
  		var Y = years;
  		var M = months;
  		var D = days;
  		var h = hours;
  		var m = minutes;
  		var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
  		var total = this.asSeconds();
  
  		if (!total) {
  			// this is the same as C#'s (Noda) and python (isodate)...
  			// but not other JS (goog.date)
  			return 'P0D';
  		}
  
  		var totalSign = total < 0 ? '-' : '';
  		var ymSign = sign(this._months) !== sign(total) ? '-' : '';
  		var daysSign = sign(this._days) !== sign(total) ? '-' : '';
  		var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';
  
  		return totalSign + 'P' +
  			(Y ? ymSign + Y + 'Y' : '') +
  			(M ? ymSign + M + 'M' : '') +
  			(D ? daysSign + D + 'D' : '') +
  			((h || m || s) ? 'T' : '') +
  			(h ? hmsSign + h + 'H' : '') +
  			(m ? hmsSign + m + 'M' : '') +
  			(s ? hmsSign + s + 'S' : '');
  	}
  
  	var proto$2 = Duration.prototype;
  
  	proto$2.isValid = isValid$1;
  	proto$2.abs = abs;
  	proto$2.add = add$1;
  	proto$2.subtract = subtract$1;
  	proto$2.as = as;
  	proto$2.asMilliseconds = asMilliseconds;
  	proto$2.asSeconds = asSeconds;
  	proto$2.asMinutes = asMinutes;
  	proto$2.asHours = asHours;
  	proto$2.asDays = asDays;
  	proto$2.asWeeks = asWeeks;
  	proto$2.asMonths = asMonths;
  	proto$2.asQuarters = asQuarters;
  	proto$2.asYears = asYears;
  	proto$2.valueOf = valueOf$1;
  	proto$2._bubble = bubble;
  	proto$2.clone = clone$1;
  	proto$2.get = get$2;
  	proto$2.milliseconds = milliseconds;
  	proto$2.seconds = seconds;
  	proto$2.minutes = minutes;
  	proto$2.hours = hours;
  	proto$2.days = days;
  	proto$2.weeks = weeks;
  	proto$2.months = months;
  	proto$2.years = years;
  	proto$2.humanize = humanize;
  	proto$2.toISOString = toISOString$1;
  	proto$2.toString = toISOString$1;
  	proto$2.toJSON = toISOString$1;
  	proto$2.locale = locale;
  	proto$2.localeData = localeData;
  
  	proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
  	proto$2.lang = lang;
  
  	// Side effect imports
  
  	// FORMATTING
  
  	addFormatToken('X', 0, 0, 'unix');
  	addFormatToken('x', 0, 0, 'valueOf');
  
  	// PARSING
  
  	addRegexToken('x', matchSigned);
  	addRegexToken('X', matchTimestamp);
  	addParseToken('X', function (input, array, config) {
  		config._d = new Date(parseFloat(input, 10) * 1000);
  	});
  	addParseToken('x', function (input, array, config) {
  		config._d = new Date(toInt(input));
  	});
  
  	// Side effect imports
  
  
  	hooks.version = '2.24.0';
  
  	setHookCallback(createLocal);
  
  	hooks.fn = proto;
  	hooks.min = min;
  	hooks.max = max;
  	hooks.now = now;
  	hooks.utc = createUTC;
  	hooks.unix = createUnix;
  	hooks.months = listMonths;
  	hooks.isDate = isDate;
  	hooks.locale = getSetGlobalLocale;
  	hooks.invalid = createInvalid;
  	hooks.duration = createDuration;
  	hooks.isMoment = isMoment;
  	hooks.weekdays = listWeekdays;
  	hooks.parseZone = createInZone;
  	hooks.localeData = getLocale;
  	hooks.isDuration = isDuration;
  	hooks.monthsShort = listMonthsShort;
  	hooks.weekdaysMin = listWeekdaysMin;
  	hooks.defineLocale = defineLocale;
  	hooks.updateLocale = updateLocale;
  	hooks.locales = listLocales;
  	hooks.weekdaysShort = listWeekdaysShort;
  	hooks.normalizeUnits = normalizeUnits;
  	hooks.relativeTimeRounding = getSetRelativeTimeRounding;
  	hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
  	hooks.calendarFormat = getCalendarFormat;
  	hooks.prototype = proto;
  
  	// currently HTML5 input type only supports 24-hour formats
  	hooks.HTML5_FMT = {
  		DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
  		DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
  		DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
  		DATE: 'YYYY-MM-DD', // <input type="date" />
  		TIME: 'HH:mm', // <input type="time" />
  		TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
  		TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
  		WEEK: 'GGGG-[W]WW', // <input type="week" />
  		MONTH: 'YYYY-MM' // <input type="month" />
  	};
  
  	return hooks;
  
  })));