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