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