There are total 3 hours or 180 minutes from 6am to 9am. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 11AM to 1PM | 12AM to 4AM | 10AM to 5AM |
| 8PM to 6AM | 7PM to 9PM | 12AM to 6AM |
| 9PM to 9AM | 6AM to 8PM | 9AM to 1AM |
| 9PM to 6AM | 5PM to 11AM | 10PM to 9PM |
| 11AM to 6PM | 11PM to 12AM | 4PM to 8AM |
| 12AM to 5PM | 12PM to 5PM | 12PM to 12AM |
