There are total 10 hours or 600 minutes from 9am to 7pm. In words, this duration is equal to ten hours or six hundred minutes.
How many hours from
| 9PM to 1AM | 11PM to 10PM | 8PM to 8AM |
| 7AM to 8PM | 4AM to 8AM | 9AM to 1AM |
| 6AM to 7AM | 5PM to 4AM | 12AM to 1PM |
| 8AM to 10PM | 11PM to 9AM | 3PM to 10PM |
| 10PM to 6PM | 12AM to 3AM | 4AM to 9PM |
| 3AM to 6AM | 12AM to 3PM | 7PM to 7AM |
