5:45am to 7:30pm is 13 hours and 45 minutes.
Round 7:30 am up to 8 am. 8am = 0800 and 5 pm = 1700 so from 8 am to 5 pm, it is 9 hours. There are thirty minutes left from 7:30 am to 8 am so there are 9.5 hours from 7:30 am to 5 pm.
If one is am and the other is pm, there are 7 hours in this period. If they are both am or pm, there are 5 hours in this period.
Six hours in total !
48
There are 5 hours between 4 pm and 9 pm
There are 2+12k hours where k is an integer.
5 hours and 30 minutes.
12 hours
The duration between 3:30 pm and 9:15 pm is 5 hours and 45 minutes.
Twenty hours.
5 hours