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