There are total 10 hours or 600 minutes from 9pm to 7am. In words, this duration is equal to ten hours or six hundred minutes.
How many hours from
| 4AM to 11PM | 3PM to 12PM | 6PM to 1PM |
| 8AM to 3PM | 9AM to 12PM | 3AM to 1PM |
| 11PM to 1AM | 8PM to 12AM | 2PM to 3AM |
| 11PM to 4PM | 2PM to 12PM | 11AM to 12PM |
| 1AM to 2PM | 8PM to 7AM | 10AM to 11AM |
| 9PM to 8AM | 1PM to 1AM | 2AM to 3AM |
