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