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