Online PHP editor | refs for V6fG8

<?php $baseDate = new DateTime('2017-01-01', new DateTimezone('UTC')); $endDate = clone $baseDate; for($i = 15; $i <= 600; $i+=15) { $duration = new DateInterval("PT{$i}M"); $endDate->add($duration); } $totalDuration = $baseDate->diff($endDate); var_dump($totalDuration); echo $totalDuration->format('%a days, %h hours, %i minutes');