There are total 9 hours or 540 minutes from 9pm to 6am. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 4PM to 3AM | 8PM to 9PM | 4AM to 9AM |
| 8AM to 1PM | 4PM to 1PM | 7PM to 8AM |
| 12AM to 9PM | 10AM to 4AM | 9AM to 9PM |
| 5AM to 1PM | 7AM to 3PM | 7PM to 8PM |
| 12PM to 6PM | 3AM to 11PM | 9AM to 1AM |
| 1PM to 5AM | 4AM to 11AM | 5AM to 2AM |
