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