There are total 11 hours or 660 minutes from 8am to 7pm. In words, this duration is equal to eleven hours or six hundred sixty minutes.
How many hours from
| 10AM to 1AM | 11PM to 1PM | 9PM to 3AM |
| 4AM to 11AM | 10PM to 2PM | 8AM to 7PM |
| 10AM to 5PM | 5AM to 9AM | 12AM to 2PM |
| 9AM to 10PM | 4PM to 7PM | 2PM to 9AM |
| 5PM to 5AM | 5PM to 9PM | 11PM to 9AM |
| 3PM to 8AM | 1AM to 12PM | 1PM to 10AM |
