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