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