Online PHP editor | refs for Ta4a8

<?php function timeZoneToOffset(string $timeZone): \DateTimeImmutable { return new DateTimeImmutable( '2020-01-01 15:00' . (new \DateTime('now', new DateTimeZone($timeZone)))->format('P') ); } var_dump(timeZoneToOffset('Europe/Paris')->getTimestamp() === timeZoneToOffset('Africa/Cairo')->getTimestamp());