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
| 11PM to 1PM | 5AM to 9AM | 7AM to 11PM |
| 8AM to 1PM | 10PM to 12AM | 6AM to 7PM |
| 11AM to 5PM | 3AM to 7PM | 10AM to 9AM |
| 7AM to 2AM | 12AM to 9AM | 8PM to 9PM |
| 10AM to 4PM | 2PM to 5AM | 11PM to 8PM |
| 6PM to 8AM | 1PM to 5AM | 7PM to 2PM |
