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