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