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