moment-jalaali

moment-jalaali

A Jalaali (Jalali, Persian, Khorshidi, Shamsi) calendar system plugin for moment.js.

Jalali calendar is a solar calendar that was used in Persia, variants of which today are still in use in Iran as well as Afghanistan. Read more on Wikipedia or see Calendar Converter.

This plugin adds Jalaali calendar support to momentjs library.

Calendar conversion is based on the algorithm provided by Kazimierz M. Borkowski and has a very good performance.

Where to use it

Like momentjs, moment-jalaali works in browser and in Node.js.

Node.js

npm install moment-jalaali

var moment = require('moment-jalaali')
moment().format('jYYYY/jM/jD')

Browser

You may use the node_modules/build/moment-jalaali.js file.

<script src="node_modules/moment/moment.min.js"></script>
<script src="node_modules/moment-jalaali/build/moment-jalaali.js"></script>
<script>
  moment().format('jYYYY/jM/jD')
</script>

API

This plugin tries to mimic momentjs api. Basically, when you want to format or parse a string, just add a j to the format token like 'jYYYY' or 'jM'. For example:

m = moment('1360/5/26', 'jYYYY/jM/jD') // Parse a Jalaali date
m.format('jYYYY/jM/jD [is] YYYY/M/D') // 1360/5/26 is 1981/8/17

m.jYear() // 1360
m.jMonth() // 4
m.jDate() // 26
m.jDayOfYear() // 150
m.jWeek() // 22
m.jWeekYear() // 1360

m.add(1, 'jYear')
m.add(2, 'jMonth')
m.add(3, 'day')
m.format('jYYYY/jM/jD') // 1361/7/29

m.jMonth(11)
m.startOf('jMonth')
m.format('jYYYY/jM/jD') // 1361/12/1

m.jYear(1392)
m.startOf('jYear')
m.format('jYYYY/jM/jD') // 1392/1/1

m.subtract(1, 'jYear')
m.subtract(1, 'jMonth')
m.format('jYYYY/jM/jD') // 1390/12/1

moment('1391/12/30', 'jYYYY/jMM/jDD').isValid() // true (leap year)
moment('1392/12/30', 'jYYYY/jMM/jDD').isValid() // false (common year)
moment.jIsLeapYear(1391) // true
moment.jIsLeapYear(1392) // false

moment.jDaysInMonth(1395, 11) // 30
moment.jDaysInMonth(1394, 11) // 29

moment('1392/6/3 16:40', 'jYYYY/jM/jD HH:mm').format('YYYY-M-D HH:mm:ss') // 2013-8-25 16:40:00

moment('2013-8-25 16:40:00', 'YYYY-M-D HH:mm:ss').endOf('jMonth').format('jYYYY/jM/jD HH:mm:ss') // 1392/6/31 23:59:59

// Complex parse:
moment('1981 5 17', 'YYYY jM D').format('YYYY/MM/DD') // 1981/07/17

To add Persian language, use loadPersian method:

moment.loadPersian([options])

Options

Param	Type	Default	Description	Example
usePersianDigits	Boolean	false	Use persian digits (Use at your own risk)	moment.loadPersian({usePersianDigits: true})
dialect *	String	persian	Available values = persian, persian-modern	moment.loadPersian({dialect: 'persian-modern'})

*use dialect option to change usePersian dialect, available options are:

• persian: default dialect(امرداد، آدینه، ...)
• persian-modern: modern dialect(مرداد، جمعه، ...)

Related Projects

ng-jalali-flat-datepicker

A lightweight angular.js date picker using moment-jalaali is thg303/ng-jalali-flat-datepicker created by @thg303.

pholiday

A library based on moment-jalaali for calculating holidays in Persian calendar is shkarimpour/pholiday created by @shkarimpour.

moment-hijri

Another calendar system plugin for momentjs is moment-hijri created by @xsoh.

License

MIT