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<?php date_default_timezone_set('Pacific/Auckland'); $dt = new DateTimeImmutable('2020-09-24 12:00:00', new DateTimeZone('Pacific/Auckland')); var_dump($dt->getTimestamp()); var_dump($ts = date_sunrise($dt->getTimestamp(), SUNFUNCS_RET_TIMESTAMP, -38.6623, 178.0176)); var_dump(date('Y-m-d H:i:s', $ts));

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