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