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$time = new DateTime("2012-09-21 12:12:22");
$diff = $time->diff(new DateTime());
$minutes = ($diff->days * 24 * 60) +
($diff->h * 60) + $diff->i;
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var mins = moment.utc(moment(endTime, "HH:mm:ss").diff(moment(startTime, "HH:mm:ss"))).format("mm")