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