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