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