There are total 21 hours or 1260 minutes from 9pm to 6pm. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 5AM to 9PM | 11PM to 9PM | 10AM to 12PM |
| 12AM to 8AM | 1AM to 9AM | 6PM to 2PM |
| 8AM to 7PM | 10AM to 12PM | 12AM to 9PM |
| 6AM to 1PM | 9PM to 2PM | 5AM to 7PM |
| 3AM to 9PM | 2AM to 4AM | 10AM to 11PM |
| 3AM to 4PM | 4PM to 10PM | 5AM to 2AM |
