There are total 11 hours or 660 minutes from 9pm to 8am. In words, this duration is equal to eleven hours or six hundred sixty minutes.
How many hours from
| 7PM to 12PM | 1PM to 8PM | 4PM to 11PM |
| 2PM to 10PM | 6PM to 8PM | 5PM to 7PM |
| 12PM to 10PM | 5AM to 10PM | 9PM to 6PM |
| 11PM to 6AM | 3PM to 5PM | 9PM to 4PM |
| 1AM to 7AM | 7PM to 1PM | 5AM to 12PM |
| 10PM to 12PM | 5PM to 10AM | 8PM to 5PM |
