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