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