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