From 630 am to noon is 5.5 hours. From noon to 330 pm is 3.5 hours. Total =9 hours.
6 hours.
9 hours.
9 hours.
3 hours.
8.5
7 and a half hours
10.5 hours
3 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.