cal_to_jd

    (PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)

    cal_to_jd — Converts from a supported calendar to Julian Day Count

    Description

    cal_to_jd(
        int $calendar,
        int $month,
        int $day,
        int $year
    ): int

    cal_to_jd() calculates the Julian day count for a date in the specified calendar. Supported calendars are CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH and CAL_FRENCH.

    Parameters

    calendar

    Calendar to convert from, one of CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH or CAL_FRENCH.

    month

    The month as a number, the valid range depends on the calendar

    day

    The day as a number, the valid range depends on the calendar

    year

    The year as a number, the valid range depends on the calendar

    Return Values

    A Julian Day number.

    See Also

    • cal_from_jd() - Converts from Julian Day Count to a supported calendar
    • frenchtojd() - Converts a date from the French Republican Calendar to a Julian Day Count
    • gregoriantojd() - Converts a Gregorian date to Julian Day Count
    • 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

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top