unixtojd

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

    unixtojd — Convert Unix timestamp to Julian Day

    Description

    unixtojd(?int $timestamp = null): int|false

    Return the Julian Day for a Unix timestamp (seconds since 1.1.1970), or for the current day if no timestamp is given. Either way, the time is regarded as local time (not UTC).

    Parameters

    timestamp

    A unix timestamp to convert.

    Return Values

    A julian day number as integer, or false on failure.

    Changelog

    Version Description
    8.0.0 timestamp is nullable now.

    See Also

    • jdtounix() - Convert Julian Day to Unix timestamp

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