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