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