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