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