There are total 9 hours or 540 minutes from 9am to 6pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 2PM to 12PM | 7AM to 5PM | 7PM to 8PM |
| 5PM to 7PM | 9AM to 8AM | 7PM to 4AM |
| 2AM to 10AM | 6AM to 1AM | 4PM to 2AM |
| 1PM to 4AM | 11AM to 9PM | 3AM to 5AM |
| 9AM to 3AM | 8AM to 6PM | 11PM to 8PM |
| 9PM to 5PM | 5AM to 12AM | 4PM to 11PM |
