There are total 9 hours or 540 minutes from 4pm to 1am. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 6PM to 10PM | 2PM to 8PM | 4PM to 8PM |
| 7PM to 5PM | 9PM to 8AM | 4PM to 4AM |
| 11PM to 1PM | 5AM to 1AM | 12AM to 3PM |
| 5PM to 10AM | 11AM to 7AM | 4PM to 6PM |
| 5PM to 2AM | 12AM to 2AM | 2PM to 8PM |
| 1AM to 9AM | 5PM to 3PM | 8AM to 2AM |
