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