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
| 6PM to 2PM | 2AM to 2PM | 12PM to 11PM |
| 8PM to 5AM | 12PM to 8PM | 11PM to 11AM |
| 1AM to 6PM | 10AM to 12AM | 8PM to 11AM |
| 11PM to 9AM | 11PM to 9AM | 7AM to 5PM |
| 6AM to 7PM | 3PM to 5PM | 6AM to 8PM |
| 10AM to 6AM | 8PM to 12PM | 11PM to 8AM |
