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