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