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