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