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