There are total 9 hours or 540 minutes from 12am to 9am. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 8PM to 9AM | 7PM to 3AM | 12AM to 4PM |
| 4AM to 5PM | 6PM to 11AM | 4PM to 7AM |
| 6AM to 8AM | 12PM to 3AM | 5AM to 9AM |
| 6PM to 2PM | 3AM to 10AM | 12PM to 11PM |
| 12PM to 5AM | 8PM to 5AM | 2AM to 5PM |
| 12PM to 4AM | 8AM to 7PM | 5PM to 6PM |
