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