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