php convert datetime to UTC

Question

I am in need of an easy way to convert a date time stamp to UTC (from whatever timezone the server is in) HOPEFULLY without using any libraries.

Answer 1

Try the getTimezone and setTimezone, see the example

(But this does use a Class)

UPDATE:

Without any classes you could try something like this:

$the_date = strtotime("2010-01-19 00:00:00");
echo(date_default_timezone_get() . "
");
echo(date("Y-d-mTG:i:sz",$the_date) . "
");
echo(date_default_timezone_set("UTC") . "
");
echo(date("Y-d-mTG:i:sz", $the_date) . "
");

NOTE: You might need to set the timezone back to the original as well