12 hours
7
Ten hours.
8 hours.
10 hours and 15 minutes.
10 hours and 45 minutes.
12 hours 30 minutes.
2 hours from 1130 pm to 130 am 14 hours from 1130 am to 130 am
From 7 a.m. to 1:30 p.m. there are 6 hours and 30 minutes.
9 hours
Ten Hours
10.5 + 24k hours where k is any integer.