There are total 3 hours or 180 minutes from 9am to 12pm. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 3AM to 1AM | 11PM to 4PM | 8PM to 9PM |
| 11PM to 7AM | 10AM to 3AM | 11AM to 5AM |
| 11AM to 5PM | 11AM to 2PM | 3AM to 8PM |
| 5AM to 10AM | 11PM to 2PM | 7AM to 5AM |
| 11AM to 1PM | 6PM to 12AM | 4AM to 1AM |
| 6AM to 12PM | 7PM to 11PM | 11PM to 12AM |
