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