- var_dump: documentation ( source)
<?php
$a = new DateTime('2013-03-31 02:00:00', new DateTimeZone('Europe/Copenhagen'));
$a->setTimeZone(new DateTimeZone('UTC'));
$a->setTimeZone(new DateTimeZone('Europe/Copenhagen'));
var_dump($a); //Should show '2013-03-31 02:00:00'