(11.5 + 24k) hours where k is an integer. 11 and 1/2 hours.
(7+12k) hours where k is an integer.
(11+24k) hours where k is an integer.
10.5 hours
315
7 and a half hours
(11.5 + 24k) hours where k is an integer. 11 and 1/2 hours.
9 hours.
9 hours.
3 pm is 15 hours, so 15-3 1/2 = 11 1/2 hours or 11:30 hours
If they're both on the same date, then they mark a period of 21/2 hours.
There are 9 hours between 630 am and 930 am.
2:15 14:15 if one is in other half of day
8.5 hrs
8.5
630 minutes.
(7+12k) hours where k is an integer.