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