There are total 20 hours or 1200 minutes from 12am to 8pm. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 4AM to 5AM | 6PM to 1PM | 8PM to 3AM |
| 6PM to 4AM | 6PM to 9PM | 12PM to 9PM |
| 12AM to 4AM | 1AM to 9PM | 7AM to 9AM |
| 7AM to 11AM | 1PM to 11PM | 6PM to 1AM |
| 12PM to 2AM | 8PM to 5PM | 9PM to 9AM |
| 5AM to 12PM | 12AM to 4PM | 9AM to 11AM |
