There are 8.5 hours. * hours and 30 minutes
9 hours.
If they're both on the same date, then they mark a period of 21/2 hours.
3 pm is 15 hours, so 15-3 1/2 = 11 1/2 hours or 11:30 hours
The time from 2 PM to 6:30 PM is 4 hours and 30 minutes. To break it down, from 2 PM to 6 PM is 4 hours, and then adding the additional 30 minutes brings the total to 4 hours and 30 minutes.
10 hours and 40 minutes.
9 hours.
9 hours.
8.5
7 and a half hours
10.5 hours
11 hours and 45 minutes.
11 hours and 45 minutes.
There are 14 hours and 45 minutes between 3:45 pm and 6:30 am.
(11+24k) hours where k is an integer.
There are 9 hours between 630 am and 930 am.
630 PM
If they're both on the same date, then they mark a period of 21/2 hours.