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