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
| 12AM to 4AM | 1AM to 10PM | 4PM to 8PM |
| 8AM to 9AM | 2PM to 7AM | 5AM to 10PM |
| 4PM to 3AM | 11PM to 7PM | 6PM to 11AM |
| 10PM to 2AM | 3AM to 6PM | 5PM to 7PM |
| 5AM to 9AM | 2PM to 5PM | 3AM to 4PM |
| 7PM to 10AM | 4PM to 6AM | 12AM to 10PM |
