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