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