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