seven
3 + 4 = 7
as 3 hours 9 to 12
then 4 hours 12 to 4
or in 24 hour clock 4pm is 16:00
so 16 - 9 = 7 hours
13
21 hours
It's 7 hours 4pm = 1600 9 am = 0900 16 - 9 = 7
9am, 10am, 11am, 12pm, 1pm, 2pm, 3pm, 4pm, 5pm. 8 hours.
(7 + 24k) hours where k is an integer - likely to be 0.
12am to 4pm is 16 hours.
6 hours from 4pm to 10pm
Yes.. It is open from 9am until 4pm the usual Saturday opening hours
7am to 4pm is 9 hours.
4pm to midnight is 8 hours.
12 hours.
10am to 4pm is a period of six hours.