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
| 4PM to 3PM | 8AM to 4PM | 8PM to 5PM |
| 5AM to 10AM | 1AM to 11AM | 7AM to 2AM |
| 7AM to 9PM | 10PM to 9AM | 4PM to 2AM |
| 3AM to 8AM | 3AM to 6AM | 4AM to 11PM |
| 4AM to 9AM | 10PM to 3AM | 12AM to 9AM |
| 6PM to 4PM | 4AM to 3AM | 2PM to 11AM |
