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<?php $tz1 = new DateTime('now', new DateTimeZone('UTC')); $tz2 = new DateTime('now', new DateTimeZone('Europe/London')); $tz1->setTimeZone(new DateTimeZone('UTC')); $tz2->setTimeZone(new DateTimeZone('UTC')); var_dump($tz1->format('Y-m-d H:i:s')); var_dump($tz2->format('Y-m-d H:i:s'));

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