There are total 9 hours or 540 minutes from 4am to 1pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 2PM to 6PM | 3PM to 11PM | 4AM to 5AM |
| 11AM to 9PM | 5AM to 11AM | 9PM to 4AM |
| 10AM to 11PM | 12AM to 6PM | 2AM to 8PM |
| 6PM to 5PM | 5PM to 3AM | 11AM to 9AM |
| 5PM to 6PM | 3PM to 11PM | 6AM to 2AM |
| 5AM to 6PM | 12PM to 7AM | 8AM to 8PM |
