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