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 3PM | 6AM to 2PM | 2AM to 3PM |
| 3AM to 4AM | 12AM to 3PM | 12AM to 5AM |
| 6PM to 11PM | 12PM to 3PM | 6AM to 1AM |
| 2PM to 1PM | 8PM to 5PM | 6AM to 10AM |
| 7PM to 12AM | 1PM to 1AM | 9PM to 2PM |
| 4AM to 8PM | 9AM to 6PM | 9AM to 1PM |
