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