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