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