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