There are total 4 hours or 240 minutes from 8pm to 12am. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 10AM to 6AM | 9PM to 1AM | 7AM to 10PM |
| 1PM to 5PM | 2PM to 11PM | 3PM to 2AM |
| 4AM to 7PM | 8AM to 2PM | 8PM to 10AM |
| 6AM to 7PM | 3AM to 9PM | 10PM to 11AM |
| 5AM to 1AM | 11AM to 1PM | 11AM to 10PM |
| 9PM to 9AM | 12AM to 4AM | 3PM to 6PM |
