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