Calendar

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- PHP Manual
- Date and Time Related Extensions
- Calendar

# Calendar

- Introduction
- Installing/Configuring
  - Installation
- 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 local 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