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