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