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