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