libcalendar library

Functions

fromCjdnToGregorian(int cjdn) → DateTime

Converts Chronological Julian Day Number (CJDN) given by parameter cjdn to Gregorian calendar as a DateTime object. The DateTime object returned will always be in UTC.

fromCjdnToIslamic(int cjdn) → DateTime

Converts a Chronological Julian Day Number (CJDN) given by parameter cjdn to Islamic calendar as a DateTime object. The DateTime object returned will always be in UTC.

fromGregorianToCjdn(int year, int month, int day) → int

Converts Gregorian calendar, given by parameter year, month and day to Chronological Julian Day Number (CJDN).

fromGregorianToIslamic(int year, int month, int day) → DateTime

Converts Gregorian calendar, given by parameter year, month and day to Islamic calendar as a DateTime object. The DateTime object returned will always be in UTC.

fromGregorianToJulianDate(DateTime dateTimeInUtc) → double

Converts a Gregorian date and time, given by parameter dateTimeInUtc, to Julian Date format as a double.

fromIslamicToCjdn(int year, int month, int day) → int

Converts an Islamic calendar date, given by parameters year, month, and day, to a Chronological Julian Day Number (CJDN).

fromIslamicToGregorian(int year, int month, int day) → DateTime

Converts Islamic calendar, given by parameter year, month and day to Gregorian calendar as a DateTime object. The DateTime object returned will always be in UTC.

fromJulianDateToGregorian(double jd) → DateTime

Converts Julian Date given by parameter jd to Gregorian date and time as DateTime object. The DateTime object returned will be always in UTC.

Exceptions / Errors

CalendarConversionError

Error thrown by calendar converter methods when any invalid operation occurs.