There are total 20 hours or 1200 minutes from 8pm to 4pm. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 10AM to 6AM | 12PM to 7AM | 8PM to 8AM |
| 1PM to 5AM | 8AM to 6AM | 3PM to 1AM |
| 5AM to 11AM | 6PM to 6AM | 9AM to 11AM |
| 11AM to 1PM | 4PM to 4AM | 10PM to 4PM |
| 2AM to 7AM | 4AM to 9PM | 9AM to 8AM |
| 7AM to 10PM | 4AM to 2PM | 3AM to 5AM |
