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