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
| 3AM to 9PM | 1PM to 7PM | 2PM to 1AM |
| 4AM to 6PM | 1AM to 6AM | 1AM to 8PM |
| 3PM to 11AM | 11AM to 5AM | 9AM to 1PM |
| 5PM to 1PM | 1AM to 2PM | 11PM to 7AM |
| 3PM to 4AM | 6AM to 1AM | 10PM to 8AM |
| 7PM to 5AM | 8AM to 1AM | 8AM to 7AM |
