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