There are total 1 hours or 60 minutes from 8am to 9am. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 10PM to 7PM | 9PM to 3AM | 3PM to 3AM |
| 3PM to 5PM | 5AM to 8AM | 8AM to 3PM |
| 6PM to 4AM | 12AM to 7PM | 2PM to 11PM |
| 5AM to 11PM | 1AM to 9AM | 4AM to 10PM |
| 11AM to 7AM | 10PM to 10AM | 9PM to 1PM |
| 1PM to 12AM | 12PM to 9AM | 8PM to 8AM |
