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
| 3AM to 7PM | 4PM to 10AM | 7AM to 12AM |
| 9AM to 11PM | 3PM to 12AM | 1AM to 2PM |
| 3AM to 11PM | 7AM to 6PM | 11AM to 12AM |
| 7PM to 8PM | 3AM to 9PM | 11PM to 8PM |
| 8PM to 2PM | 3AM to 8AM | 4AM to 5PM |
| 1PM to 3AM | 10PM to 3PM | 3AM to 9AM |
