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