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