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