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