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