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