There are total 9 hours or 540 minutes from 8am to 5pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 4AM to 2AM | 2AM to 7AM | 10PM to 6PM |
| 3PM to 1PM | 2PM to 7AM | 10AM to 2PM |
| 6AM to 12PM | 11PM to 4AM | 9AM to 12PM |
| 5AM to 2AM | 12AM to 5AM | 9PM to 11AM |
| 6AM to 5AM | 1PM to 3AM | 7AM to 7PM |
| 10AM to 6AM | 3AM to 6PM | 7AM to 11AM |
