There are total 9 hours or 540 minutes from 3am to 12pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 7AM to 8PM | 2PM to 11AM | 8PM to 7PM |
| 8AM to 9AM | 10PM to 12AM | 11AM to 2PM |
| 2PM to 6PM | 8AM to 12PM | 6AM to 9AM |
| 11AM to 4PM | 7AM to 9PM | 9PM to 5PM |
| 5PM to 6PM | 6AM to 8AM | 11PM to 1PM |
| 5PM to 10AM | 5AM to 7PM | 8AM to 10AM |
