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