There are 9 hours between 630 am and 930 am.
Well, honey, if you can't count the hours between 6:30 am and 3:30 pm, then we've got bigger problems on our hands. But since you asked, that's a total of 9 hours. Math doesn't have to be a mystery, darling.
9 hours.
8.5
7 and a half hours
10.5 hours
There are 14 hours and 45 minutes between 3:45 pm and 6:30 am.
11 hours and 45 minutes.
11 hours and 45 minutes.
8 hours.
(11+24k) hours where k is an integer.
8 hours and 30 minutes.