gmdate

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

gmdate — Format a GMT/UTC date/time

Description

gmdate(string $format, ?int $timestamp = null): string

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

Parameters

format

The format of the outputted date string. See the formatting options for the date() function.

timestamp

The optional timestamp parameter is an int Unix timestamp that defaults to the current local time if timestamp is omitted or null. In other words, it defaults to the value of time().

Return Values

Returns a formatted date string.

Changelog

VersionDescription
8.0.0timestamp is nullable now.

Examples

Example #1 gmdate() example

<?php
date_default_timezone_set("Europe/Helsinki");

echo date("M d Y H:i:s e", mktime(0, 0, 0, 1, 1, 1998)) . "\n";
echo gmdate("M d Y H:i:s e", mktime(0, 0, 0, 1, 1, 1998));

The above example will output:

Jan 01 1998 00:00:00 Europe/Helsinki
Dec 31 1997 22:00:00 UTC

See Also