There are total 3 hours or 180 minutes from 8pm to 11pm. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 12PM to 1PM | 2PM to 1AM | 1PM to 3AM |
| 8AM to 6PM | 3PM to 8AM | 3AM to 8PM |
| 9PM to 8PM | 7AM to 12AM | 11PM to 6AM |
| 10PM to 10AM | 5PM to 9PM | 9AM to 10PM |
| 7PM to 8PM | 3PM to 7PM | 8PM to 4AM |
| 12AM to 8PM | 3PM to 7AM | 10PM to 9AM |
