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