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