There are 6 1/4 hours between 9:30 am and 3:45 pm, or between 9:30 pm and 3:45 am.
There are 18 1/4 hours between 9:30 am and 3:45 am, or between 9:30 pm and 3:45 pm.
it is 1 hour 30 mins = 1½ hours.
There are 9 hours between 630 am and 930 am.
55,800 (930 x 60mins)
12 hours
1460
9 hours.
8
6 hours and 30 minutes.
This is equivalent to 16 hours.
1 month 210 hours
6 3/4 hours
9h 15m