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