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