There are total 11 hours or 660 minutes from 8pm to 7am. In words, this duration is equal to eleven hours or six hundred sixty minutes.
How many hours from
| 12PM to 9PM | 7AM to 5PM | 6PM to 5AM |
| 10PM to 11AM | 10PM to 6PM | 3PM to 11PM |
| 2PM to 3PM | 7AM to 3AM | 6AM to 5AM |
| 9AM to 8AM | 6PM to 9PM | 9AM to 1PM |
| 4AM to 2PM | 10PM to 9AM | 7AM to 3PM |
| 9PM to 7AM | 10AM to 4AM | 4AM to 11PM |
