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