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