note 102675 modified in function.strtotime by danbrown

Function to add duration to time

<?php
function addTime($start_time, $duration)	{
	list($dhrs, $dmin, $dsec)	= explode(':',$duration);
	return date('H:i:s', strtotime($start_time.' '.'+'.$dhrs.' hours,'. $dmin.' minutes,' .$dsec. ' seconds'));
}
?>

--was--
Function to add duration to time

function addTime($start_time, $duration)	{
	list($dhrs, $dmin, $dsec)	= explode(':',$duration);
	return date('H:i:s', strtotime($start_time.' '.'+'.$dhrs.' hours,'. $dmin.' minutes,' .$dsec. ' seconds'));
}

http://php.net/manual/en/function.strtotime.php