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