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