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