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