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