There are total 15 hours or 900 minutes from 9am to 12am. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 5AM to 7PM | 8PM to 9PM | 5PM to 12PM |
| 2PM to 6PM | 11AM to 7AM | 5PM to 9AM |
| 9AM to 8PM | 2AM to 6PM | 7AM to 10PM |
| 10AM to 5AM | 5PM to 9PM | 7PM to 8AM |
| 5PM to 10AM | 4AM to 3AM | 6AM to 12AM |
| 9AM to 10PM | 2AM to 4AM | 1PM to 6AM |
