A few Swift functions for converting Jalaali (Jalali, Persian, Khayyami, Khorshidi, Shamsi) and Gregorian calendar systems to each other.

About

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.

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

Install

Use Carthage to build and install.

API

func toJalaali(gy: GregorianYear, _ gm: GregorianMonth, _ gd: GregorianDay) -> JalaaliDate

Converts a Gregorian date to Jalaali.

func toGregorian(jy: JalaaliYear, _ jm: JalaaliMonth, _ jd: JalaaliDay) -> GregorianDate

Converts a Jalaali date to Gregorian.

func isValidJalaaliDate(jy: JalaaliYear, _ jm: JalaaliMonth, _ jd: JalaaliDay) -> Bool

Checks whether a Jalaali date is valid or not.

func isLeapJalaaliYear(jy: JalaaliYear) -> Bool {

Is this a leap year or not?

func lastDayOfJalaaliMonth(jy: JalaaliYear, _ jm: JalaaliMonth) -> JalaaliDay

Number of days in a given month in a Jalaali year.

typealias JalaaliDate = (year: JalaaliYear, month: JalaaliMonth, day: JalaaliDay)

A tuple for a Jalaali date.

typealias GregorianDate = (year: GregorianYear, month: GregorianMonth, day: GregorianDay)

A tuple for a Gregorian date.

typealias JalaaliYear = Int

An Int representing a Jalaali year.

typealias JalaaliMonth = Int

An Int representing a Jalaali month (1-based).

typealias JalaaliDay = Int

An Int representing a Jalaali day.

typealias GregorianYear = Int

An Int representing a Gregorian year.

typealias GregorianMonth = Int

An Int representing a Gregorian month (1-based).

typealias GregorianDay = Int

An Int representing a Gregorian day.

typealias JulianDayNumber = Int

An Int representing a Julian Day Number

License

MIT