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