how to divide time php

Question

I want to divide time to an integer value:

1-> 6.15AM till 7.00AM
2-> 7.00AM till 7.45AM
3-> 7.45AM till 8.30AM
4-> 8.30AM till 9.15AM
------BREAK----------- 15 minutes
5-> 9.30AM till 10.15AM
6-> 10.15AM till 11.00AM
7-> 11.00 till 11.45AM
-------BREAK---------- 15 minutes
8-> 12.00 till 12.45PM
9-> 12.45PM till 1.30PM
10-> 1.30PM till 02.15PM

Anyone can help me...? thanks before..!

Answer 1

check out http://php.net/manual/en/function.mktime.php it might me able to help you, try converting the times into unix timestamps maybe?