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