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