There are total 7 hours or 420 minutes from 1pm to 8pm. In words, this duration is equal to seven hours or four hundred twenty minutes.
How many hours from
| 4PM to 10PM | 1AM to 4PM | 6AM to 2PM |
| 10AM to 2AM | 4PM to 5AM | 11PM to 3AM |
| 9PM to 12PM | 12PM to 10PM | 3AM to 11AM |
| 2AM to 5PM | 9AM to 8AM | 8PM to 9AM |
| 12PM to 3AM | 2PM to 8AM | 5PM to 2PM |
| 1AM to 5PM | 9AM to 12PM | 4PM to 8PM |
