There are 6 hours and 30 minutes from 8-1230pm to 230pm.
8 hours
3.5 hours, or 27.5, or 51.5
Five hours and thirty minutes.
5.5 hours.
6 and 3/4.
it is 5 1/2 hour difference
7:40am to 2:30pm is 6 hours and 50 minutes.
two and three quarters 10:45 - 08:00 = 02:45
seven and a half 14:30 - 07:00 = 07:30
435 minutes
(2:44+24k) hours where k is an integer.