There are total 9 hours or 540 minutes from 9am to 6pm. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 10PM to 3AM | 4PM to 2PM | 12PM to 5PM |
| 4AM to 1PM | 2AM to 1PM | 10AM to 6AM |
| 6PM to 11PM | 8AM to 4AM | 8AM to 3PM |
| 9PM to 1AM | 7AM to 10AM | 5AM to 2PM |
| 6PM to 2AM | 6PM to 2PM | 11AM to 2PM |
| 9PM to 7PM | 4PM to 6AM | 10PM to 4PM |
