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