- date_diff: documentation ( source)
- date: documentation ( source)
<?php
$start_stamp = date("c", $eachOffDuty['startTime']);
$start_date = new DateTime($start_stamp);
$end_stamp = date("c", $eachOffDuty['endTime']);
$end_date = new DateTime($end_stamp);
$duration = date_diff($start_date, $end_date);