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