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<?php $spd = (60 * 60 * 24); $sph = (60 * 60); $spm = (60); $start = date('Y-m-d H:m:s'); $end = date('Y-m-d H:m:s', strtotime($start . ' +13 hours')); $sec_diff = strtotime($end) - strtotime($start); $days = floor($sec_diff / $spd); $hours = ($sec_diff - ($days * $spd)) / $sph; echo $days . " " . $hours; ?>

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