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