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