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
| 5PM to 3AM | 6AM to 2AM | 8AM to 5PM |
| 6PM to 8AM | 7PM to 4AM | 4AM to 5PM |
| 1AM to 6PM | 3AM to 5AM | 9AM to 9PM |
| 7AM to 2PM | 12PM to 2PM | 6PM to 10PM |
| 12AM to 4AM | 10AM to 12PM | 9PM to 8AM |
| 1AM to 8AM | 7AM to 2PM | 2PM to 9PM |
