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