PHP 4, PHP 5, PHP 7, PHP 8
unixtojd - Convert Unix timestamp to Julian Day

unixtojd( [int|null$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).



A unix timestamp to convert.

Return Values

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


Version Description
8.0.0 timestamp is nullable now.

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Calendar Functions

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