In my PHP application I want to calculate the sum of two time variables. I am looking for something like this example.
$time1 = 15:20:00;
$time2 = 00:30:00;
$time = $time1+$time2;
The best way to do this is most likely to use strtotime to convert them to timestamps and then do the adding together:
$o = strtotime($time1)+strtotime($time2);
If I remember right
strtotime does support this format.
Otherwise you will need to filter it out yourself.