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