text: 'use strict';
  
  var addDateTime = function(date){
  	var result = {
   		$gte: date, 
   		$lte: date + 'Z'
   	};
  
  	if(/(.+Z)-(.+Z)/.test(date)){
  		var matches = /(.+Z)-(.+Z)/.exec(date);
  		result.$gte = matches[1];
  		result.$lte = matches[2];
  	}
  
  	return result;
  };
  
  module.exports.addDateTime = addDateTime;