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