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