There are total 11 hours or 660 minutes from 10pm to 9am. In words, this duration is equal to eleven hours or six hundred sixty minutes.
How many hours from
| 8PM to 10PM | 4AM to 5AM | 8AM to 5PM |
| 1PM to 12AM | 1PM to 10AM | 12PM to 9AM |
| 10PM to 6AM | 10AM to 10PM | 12AM to 5PM |
| 6PM to 2AM | 12AM to 7AM | 12AM to 7AM |
| 1AM to 4AM | 12AM to 11PM | 5AM to 9PM |
| 6PM to 8PM | 12PM to 1PM | 6AM to 4AM |
