There are total 20 hours or 1200 minutes from 4pm to 12pm. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 7AM to 8AM | 10PM to 5PM | 10AM to 4AM |
| 5AM to 2PM | 10AM to 1PM | 6PM to 9PM |
| 8PM to 5AM | 8PM to 7PM | 7PM to 6PM |
| 1PM to 9PM | 3PM to 9PM | 9AM to 8AM |
| 12AM to 9PM | 1PM to 9PM | 4PM to 7PM |
| 8AM to 9PM | 9PM to 10AM | 10AM to 5AM |