Date/Time Functions

gmdate

Format a GMT/UTC date/time

Description

string gmdate(string $format, intnull $timestamp = null)

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

Version	Description
8.0.0	`timestamp` 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

DateTimeImmutable::__construct
DateTimeInterface::format
date
mktime
gmmktime
IntlDateFormatter::format