Online PHP editor | refs for VkM09

<?php $ref = new DateTime('2024-01-01 00:00:00', new DateTimeZone('Europe/Berlin')); $t1 = new DateTime('2024-03-31 12:00:00', new DateTimeZone('Europe/Berlin')); $t2 = new DateTime('2024-04-01 12:00:00', new DateTimeZone('Europe/Berlin')); $t3 = new DateTime('2024-10-27 12:00:00', new DateTimeZone('Europe/Berlin')); $t4 = new DateTime('2024-10-28 12:00:00', new DateTimeZone('Europe/Berlin')); // DST start $diff1 = $ref->diff($t1); $diff2 = $ref->diff($t2); // DST end $diff3 = $ref->diff($t3); $diff4 = $ref->diff($t4); echo('DST start' . PHP_EOL); var_dump($diff1->h, $diff2->h); echo('DST end' . PHP_EOL); var_dump($diff3->h, $diff4->h);