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