There are total 20 hours or 1200 minutes from 8pm to 4pm. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 9PM to 5PM | 12AM to 9AM | 2PM to 8AM |
| 3AM to 9AM | 6PM to 7AM | 8PM to 6PM |
| 9AM to 11AM | 4PM to 1PM | 8AM to 1AM |
| 5PM to 9AM | 9AM to 5AM | 12AM to 11AM |
| 8PM to 9AM | 6AM to 5PM | 4PM to 11PM |
| 9PM to 1AM | 12AM to 6AM | 10PM to 2PM |
