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