Calendar Functions
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PHP Manual

# unixtojd

(PHP 4, PHP 5)

unixtojd — Convert Unix timestamp to Julian Day

### Description

int unixtojd ([ int `$timestamp` ] )

Return the Julian Day for a Unix `timestamp` (seconds since 1.1.1970), or for the current day if no `timestamp` is given.

### Parameters

`timestamp`

  A unix timestamp to convert.

### Return Values

A julian day number as integer.

### See Also

- jdtounix()

Calendar Functions
Date and Time
Calendar Functions
PHP Manual