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