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