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PHP Manual
Date and Time Related Extensions
Calendar
Calendar
Introduction
Installing/Configuring
Requirements
Installation
Runtime Configuration
Resource Types
Predefined Constants
Calendar Functions
cal_days_in_month
— Return the number of days in a month for a given year and calendar
cal_from_jd
— Converts from Julian Day Count to a supported calendar
cal_info
— Returns information about a particular calendar
cal_to_jd
— Converts from a supported calendar to Julian Day Count
easter_date
— Get Unix timestamp for midnight on Easter of a given year
easter_days
— Get number of days after March 21 on which Easter falls for a given year
frenchtojd
— Converts a date from the French Republican Calendar to a Julian Day Count
gregoriantojd
— Converts a Gregorian date to Julian Day Count
jddayofweek
— Returns the day of the week
jdmonthname
— Returns a month name
jdtofrench
— Converts a Julian Day Count to the French Republican Calendar
jdtogregorian
— Converts Julian Day Count to Gregorian date
jdtojewish
— Converts a Julian day count to a Jewish calendar date
jdtojulian
— Converts a Julian Day Count to a Julian Calendar Date
jdtounix
— Convert Julian Day to Unix timestamp
jewishtojd
— Converts a date in the Jewish Calendar to Julian Day Count
juliantojd
— Converts a Julian Calendar date to Julian Day Count
unixtojd
— Convert Unix timestamp to Julian Day