8.5 hours
15 hours.
3 hours.
8 hours.
This would be 6.5 hours.
6 and 1/2
24 hours
12 hours.
4to 9pm is how much hours
Between 10am and 9pm, there are 11 hours.
There are 17 hours between 9pm and 2pm the following day.
6.5 hours (6 hours 30 minutes) between 10am and 4:30pm