9 hours.
There are (7.5 + 24k) hours where k is an integer.
7 hours 15 minutes
The duration from 9:30 AM to 12:30 PM is three hours.
If they're both on the same date, then they mark a period of 21/2 hours.
5.5 + 24k where k is any integer.
There are 9 hours between 630 am and 930 am.
4 hours and 15 minutes.
This is equivalent to 16 hours.
9 hours.
9h 15m
8.5
7 and a half hours
10.5 hours
There are (7.5 + 24k) hours where k is an integer.
10 & 1/2
There are 14 hours and 45 minutes between 3:45 pm and 6:30 am.
11 hours and 45 minutes.