text: import interval from "./interval";
  import {durationDay, durationMinute} from "./duration";
  
  var day = interval(function(date) {
    date.setHours(0, 0, 0, 0);
  }, function(date, step) {
    date.setDate(date.getDate() + step);
  }, function(start, end) {
    return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay;
  }, function(date) {
    return date.getDate() - 1;
  });
  
  export default day;
  export var days = day.range;
  