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
| 1PM to 6PM | 4PM to 5PM | 11AM to 11PM |
| 8PM to 11AM | 3PM to 5PM | 5PM to 10AM |
| 2AM to 1PM | 6PM to 12PM | 10PM to 1PM |
| 4PM to 3AM | 6AM to 2AM | 8PM to 12PM |
| 9AM to 11PM | 4AM to 4PM | 1AM to 11PM |
| 9PM to 5PM | 1PM to 11AM | 11PM to 11AM |
