There are total 9 hours or 540 minutes from 9pm to 6am. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 1AM to 1PM | 3PM to 8PM | 3PM to 8PM |
| 12AM to 7AM | 7PM to 4AM | 9PM to 12PM |
| 2PM to 7AM | 6AM to 7AM | 11AM to 3AM |
| 9PM to 4AM | 7PM to 11AM | 12AM to 4PM |
| 9PM to 4PM | 10PM to 8PM | 4AM to 10AM |
| 11PM to 3AM | 6AM to 9AM | 4PM to 11PM |
