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