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