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