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