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