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
| 5PM to 3AM | 5PM to 1AM | 4PM to 1PM |
| 1AM to 5AM | 8AM to 9AM | 5AM to 11PM |
| 1PM to 1AM | 1AM to 3AM | 6AM to 1AM |
| 6PM to 11PM | 8AM to 5PM | 1PM to 8AM |
| 10PM to 6AM | 8PM to 11PM | 2PM to 9PM |
| 10AM to 7PM | 11PM to 7AM | 6AM to 4AM |
