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