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