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<?php date_default_timezone_set('Europe/Berlin'); $date1 = new DateTime("2015-03-29 02:00:00", new DateTimeZone('Europe/Berlin')); $date2 = new DateTime("2015-03-29 03:00:00", new DateTimeZone('UTC')); $date1->setTimezone(new DateTimeZone('UTC')); var_dump($date1); var_dump($date2); $interval = date_diff($date1, $date2); echo $interval->format('%H Hour(s) %I Minute(s) %S Second(s)' ); ?>

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