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