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