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