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