There are total 1 hours or 60 minutes from 8pm to 9pm. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 2PM to 9AM | 9PM to 12PM | 8AM to 11PM |
| 5AM to 6PM | 12AM to 2PM | 8AM to 11AM |
| 8PM to 6PM | 3AM to 7PM | 4AM to 3AM |
| 9AM to 6PM | 1AM to 9AM | 5PM to 2PM |
| 3AM to 11AM | 11AM to 3AM | 2AM to 10PM |
| 11PM to 10AM | 3PM to 1AM | 3PM to 8AM |
