There are total 10 hours or 600 minutes from 11am to 9pm. In words, this duration is equal to ten hours or six hundred minutes.
How many hours from
| 7AM to 8PM | 12PM to 8AM | 5PM to 10PM |
| 5PM to 4AM | 4AM to 10AM | 9AM to 4PM |
| 8PM to 9PM | 11PM to 9AM | 8AM to 10AM |
| 2PM to 1AM | 10PM to 1PM | 1AM to 4AM |
| 11AM to 12PM | 4PM to 9AM | 10AM to 4PM |
| 12PM to 11AM | 7AM to 2PM | 4AM to 4PM |
