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