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