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