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