There are total 15 hours or 900 minutes from 9am to 12am. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 9PM to 12PM | 12PM to 12AM | 8PM to 10PM |
| 6PM to 8PM | 6AM to 7PM | 5AM to 10PM |
| 8PM to 6PM | 6PM to 12AM | 5PM to 11AM |
| 5AM to 10AM | 1AM to 8PM | 6AM to 9AM |
| 1AM to 10PM | 12PM to 2AM | 2PM to 10AM |
| 2AM to 5AM | 9AM to 2AM | 6PM to 12AM |
