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