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(PHP 4, PHP 5, PHP 7)

gmstrftimeFormat a GMT/UTC time/date according to locale settings


string gmstrftime ( string $format [, int $timestamp = time() ] )

Behaves the same as strftime() except that the time returned is Greenwich Mean Time (GMT). For example, when run in Eastern Standard Time (GMT -0500), the first line below prints "Dec 31 1998 20:00:00", while the second prints "Jan 01 1999 01:00:00".



See description in strftime().


The optional timestamp parameter 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 Values

Returns a string formatted according to the given format string using the given timestamp or the current local time if no timestamp is given. Month and weekday names and other language dependent strings respect the current locale set with setlocale().


Example #1 gmstrftime() example

strftime("%b %d %Y %H:%M:%S"mktime(2000123198)) . "\n";
gmstrftime("%b %d %Y %H:%M:%S"mktime(2000123198)) . "\n";

See Also

  • strftime() - Format a local time/date according to locale settings

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User Contributed Notes 4 notes

yellow dot snow at huskies dot com
12 years ago
HTTP 1.1 (RFC 2068) requires an RFC 1123 date with a four digit year, so the correct format to use for a Last-modified header would look something like this:

("Last-modified: " .
gmstrftime("%a, %d %b %Y %T %Z",getlastmod()));
pvdster at hotmail dot com
12 years ago
If you want the dutch time on your pages and you are hosted on a server in the USA you can easily change it this way:

(LC_TIME, 'nl_NL');
$tgl = gmstrftime("%d %B %Y - %H:%M uur",time()+3600);

Then use $tgl to display the right time.
Note the +3600 is a day light savings time correction.
The result: 22 maart 2005 - 16:39 uur

First I used the normal date function and this was the previous result: March 22, 2005 - 04:28 AM

I needed it for a dutch guestbook.

I'm new to PHP and it took me a while to find it out and maybe it's of no use for experienced PHP programmers but I thought people can always ignore my post :)
peter dot albertsson at spray dot se
12 years ago
gmstrftime() should not be used to generate a RFC 850 date for use in HTTP headers, since its output is affected by setlocale().

Use gmdate instead:

gmdate('D, d M Y H:i:s') . ' GMT';
neo at gothic-chat d0t de
13 years ago
To get a RFC 850 date (used in HTTP) of the current time:

gmstrftime ("%A %d-%b-%y %T %Z", time ());

This will get for example:
Friday 25-Jun-04 03:30:23 GMT

Please note that times in HTTP-headers _must_ be GMT, so use gmstrftime() instead of strftime().
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