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