From 8:30 AM to 7:15 PM is a total of 10 hours and 45 minutes. To break it down, from 8:30 AM to 7:00 PM is 10 hours, and then you add the additional 15 minutes. Therefore, the total duration is 10 hours and 45 minutes.
2 hours and 5 minutes
12 hours 30 minutes exactly.
8 hours.
Nine hours.
840
Nine and a half hours.
4.5 hours
ten and a half
It is (8.5 + 24k) hours where k is an integer.
8:30am to noon is 3.5 hours.
8 hours and 30 minutes.
1960