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