There are total 2 hours or 120 minutes from 7pm to 9pm. In words, this duration is equal to two hours or one hundred twenty minutes.
How many hours from
| 9AM to 4AM | 8AM to 4PM | 3AM to 2AM |
| 4AM to 8PM | 4AM to 4PM | 2AM to 3PM |
| 11PM to 6AM | 2PM to 3AM | 1AM to 9AM |
| 11AM to 10PM | 5PM to 1AM | 3PM to 11AM |
| 11PM to 3AM | 7PM to 10PM | 5PM to 10PM |
| 3AM to 1PM | 7PM to 9PM | 1PM to 8PM |
