There are total 1 hours or 60 minutes from 7pm to 8pm. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 9PM to 11AM | 4PM to 12AM | 10PM to 6PM |
| 8PM to 1PM | 12AM to 9PM | 7PM to 8AM |
| 6PM to 9AM | 4PM to 9PM | 1AM to 11AM |
| 8PM to 10PM | 6AM to 1AM | 10PM to 11AM |
| 3AM to 8AM | 10PM to 6AM | 12AM to 1PM |
| 10PM to 5PM | 1PM to 12AM | 10AM to 6AM |
