There are total 9 hours or 540 minutes from 10am to 7pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 9AM to 11AM | 1PM to 8AM | 7AM to 8AM |
| 4AM to 2PM | 4AM to 3AM | 7AM to 2AM |
| 8PM to 12AM | 3PM to 7PM | 6AM to 11PM |
| 1AM to 2AM | 11PM to 12PM | 6PM to 7PM |
| 10AM to 1PM | 7AM to 4PM | 7PM to 8AM |
| 9PM to 4PM | 4PM to 10AM | 4AM to 10PM |
