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
| 9AM to 1AM | 3AM to 11AM | 8AM to 1AM |
| 7PM to 2AM | 8AM to 7AM | 3PM to 2PM |
| 4AM to 3AM | 6PM to 8PM | 3PM to 10AM |
| 11AM to 7PM | 1AM to 4AM | 12PM to 10AM |
| 11PM to 5AM | 3AM to 1PM | 6PM to 2PM |
| 6PM to 8AM | 6AM to 3AM | 12PM to 5AM |
