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