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