DateWithTimezone

gistfile1.js

define("DateWithTimezone", function(module) {
  var DateWithTimezone = function(moment){
    this.moment = moment
    moment.tz(DateWithTimezone.getTimezone())
  }
  
  _.extend(DateWithTimezone.prototype, {
    toISO: function(){
      return this.format()
    },

    format: function(format) {
      return this.moment.format(format)
    },

    localEquivalent: function(){
      return moment(this.format(), "YYYY-MM-DDTHH:mm:ss").toDate()
    },

    add: function(field, value) {
      var cloned = this.moment.clone()
      cloned.add(field, value)
      return new DateWithTimezone(cloned)
    },

    hours: function() {
      return this.moment.hours()
    },

    minutes: function() {
      return this.moment.minutes()
    },

    isLaterThan: function(compareTo) {
      return this.moment.valueOf() > compareTo.moment.valueOf()
    }
  })

  _.extend(DateWithTimezone, {
    fromISO: function(dateTimeString){
      return new DateWithTimezone(moment(dateTimeString))
    },

    fromLocalEquivalent: function(localEquivalent){
      var strWithoutTimezone = moment(localEquivalent).format("YYYY-MM-DDTHH:mm:ss")
      var timezone = moment.tz(DateWithTimezone.getTimezone()).format("Z")
      return new DateWithTimezone(moment(strWithoutTimezone + timezone))
    },

    getTimezone: function(){
      return DateWithTimezone.timezone || "Etc/UTC"
    },

    now: function(){
      return new DateWithTimezone(moment())
    }
  })

  module.exports = DateWithTimezone
})