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