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