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