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<?php $start = '2014-01-01 00:00:00'; $date_res = date_create_from_format('Y-m-d H:i:s', $start); $date_end = $date_res->add(new DateInterval('PT' . 10 . 'M')); var_dump($date_end->format("Y-m-d H:i:s")); echo "<br>";

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34.3 ms | 402 KiB | 5 Q