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