There are total 8 hours or 480 minutes from 12pm to 8pm. In words, this duration is equal to eight hours or four hundred eighty minutes.
How many hours from
| 1AM to 12AM | 8AM to 3AM | 6AM to 9PM |
| 8AM to 3AM | 8PM to 7PM | 7PM to 4PM |
| 4AM to 10AM | 11AM to 6PM | 4AM to 12PM |
| 7PM to 1PM | 12PM to 6PM | 4PM to 11AM |
| 1PM to 9AM | 11AM to 3PM | 2PM to 3PM |
| 8PM to 7AM | 4PM to 8AM | 5AM to 8AM |
