frenchtojd

    (PHP 4, PHP 5, PHP 7, PHP 8)

    frenchtojd — Converts a date from the French Republican Calendar to a Julian Day Count

    Description

    frenchtojd(int $month, int $day, int $year): int

    Converts a date from the French Republican Calendar to a Julian Day Count.

    These routines only convert dates in years 1 through 14 (Gregorian dates 22 September 1792 through 22 September 1806). This more than covers the period when the calendar was in use.

    Parameters

    month

    The month as a number from 1 (for Vendémiaire) to 13 (for the period of 5-6 days at the end of each year)

    day

    The day as a number from 1 to 30

    year

    The year as a number between 1 and 14

    Return Values

    The julian day for the given french revolution date as an integer.

    See Also

    • jdtofrench() - Converts a Julian Day Count to the French Republican Calendar
    • cal_to_jd() - Converts from a supported calendar to Julian Day Count

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