9 to 5 is 8 hours. If you subtract the lunch break, you get 7 hours, 30 minutes.
6 hours
9 am to 4:15 pm is approximately 7 hours and 15 minutes.
21 hours
11 hours
8 hours 30 minutes excluding the half-hour lunch.
9 to 7 is 10 hours 10 hours - 1 hour 15 minutes is 8 hours 45 minutes
9 to 5 is 8 hours. If you subtract the lunch break, you get 7 hours, 30 minutes.
6 hours
12 hours.
9 am to 3 pm is a six hour period.
21
From 9am to 6:30pm is 9 hours and 30 minutes.
9 am to 4:15 pm is approximately 7 hours and 15 minutes.
5 Hours
6 hours
21 hours