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