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