From 7 a.m. to 1:30 p.m. there are 6 hours and 30 minutes.
2 hours from 1130 pm to 130 am 14 hours from 1130 am to 130 am
6
It is five hours.
It is (3.5+24K) hours where k is any integer.
1:30pm to 11:00pm is 9.5 hours.
4.5 hours between 1:30pm and 6:00pm
There are 6 hours and 30 minutes between 1:30 pm and 8 pm.
It is 12 + 24k hours where k is an integer.
4hrs. 30min. or 4.5hrs. or 4 1/2hrs.
From 6:15am to 1:30pm is 7 hours and 15 minutes.
From 7 a.m. to 1:30 p.m. there are 6 hours and 30 minutes.
12 hours