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