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<?php // Trying to output 18000 $time = 12000; // milli-seconds $time = floor($time/1000); // get it into even seconds $remainder = $time % 6; if ((bool)$remainder) { $time = ($time - $remainder + 6)*1000; } else { $time = $time*1000; } echo $time;

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53.06 ms | 402 KiB | 5 Q