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