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