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