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