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