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