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