PHP - Function gmdate()



string gmdate ( string $format [, int $timestamp] );

Definition and Usage

This is identical to the date() function except that the time returned is Greenwich Mean Time (GMT).


Parameter Description
format Required. The format of the outputted date string. See the formatting options for the date() function.
timestamp Optional. This is an integer Unix timestamp that defaults to the current local time if a timestamp is not given. In other words, it defaults to the value of time().

Return Value

Returns a formatted date string. If a non-numeric value is used for timestamp, FALSE is returned and an E_WARNING level error is emitted.


Following is the usage of this function −

   echo date("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 2007));
   echo gmdate("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 2007));

This will produce the following result −

Jan 01 2007 00:00:00
Jan 01 2007 07:00:00