There are total 12 hours or 720 minutes from 3am to 3pm. In words, this duration is equal to twelve hours or seven hundred twenty minutes.
How many hours from
| 6AM to 8PM | 10AM to 12AM | 6PM to 12AM |
| 2AM to 10PM | 12PM to 4AM | 7AM to 12AM |
| 11PM to 10PM | 9PM to 8AM | 3AM to 12PM |
| 8PM to 11AM | 3AM to 11PM | 5PM to 2AM |
| 2AM to 1PM | 11AM to 10AM | 8AM to 9PM |
| 9PM to 12AM | 8PM to 8AM | 7AM to 8AM |