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
| 10AM to 8PM | 9AM to 5PM | 5AM to 7PM |
| 8AM to 3AM | 4PM to 7AM | 2AM to 5PM |
| 5PM to 1AM | 4AM to 1AM | 6AM to 8PM |
| 6AM to 8PM | 7PM to 4PM | 10PM to 9PM |
| 11PM to 12PM | 5AM to 6PM | 10PM to 7AM |
| 10AM to 5AM | 10PM to 3AM | 2AM to 9PM |
