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