There are total 21 hours or 1260 minutes from 12am to 9pm. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 9AM to 12AM | 5PM to 10AM | 8PM to 10PM |
| 3PM to 11PM | 5PM to 7AM | 12AM to 10PM |
| 3PM to 4PM | 3AM to 8AM | 11PM to 10AM |
| 5PM to 12AM | 2AM to 9PM | 9PM to 3AM |
| 3PM to 1PM | 3AM to 5PM | 5AM to 10PM |
| 10PM to 4AM | 9AM to 8AM | 4AM to 12PM |
