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