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