There are total 1 hours or 60 minutes from 9am to 10am. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 4PM to 5PM | 6PM to 2AM | 6AM to 3PM |
| 6AM to 4PM | 8AM to 3AM | 3PM to 1PM |
| 5PM to 2AM | 1AM to 4PM | 12AM to 3PM |
| 11AM to 12AM | 6PM to 12PM | 2PM to 6PM |
| 4AM to 5AM | 4AM to 7PM | 2PM to 8PM |
| 9PM to 1PM | 11PM to 9PM | 4PM to 5AM |
