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 11PM | 5AM to 4AM | 7AM to 9PM |
| 8PM to 4AM | 10PM to 2AM | 5AM to 5PM |
| 7PM to 4AM | 1AM to 7PM | 9AM to 12AM |
| 6PM to 5AM | 12AM to 8PM | 8AM to 2AM |
| 6PM to 11AM | 3PM to 4PM | 10AM to 12PM |
| 2AM to 4PM | 9PM to 8PM | 6PM to 3PM |
