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