Online PHP editor | refs for v3u2v

<?php $date = new DateTime('2021-03-28 03:00:00', new DateTimeZone('Europe/Amsterdam')); $_30mbefore = (clone $date)->sub(new DateInterval('PT30M')); $_30mafter = (clone $date)->add(new DateInterval('PT30M')); var_dump($date->format(DATE_ATOM)); var_dump($_30mbefore->format(DATE_ATOM)); var_dump($_30mafter->format(DATE_ATOM));