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