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