There are total 4 hours or 240 minutes from 4pm to 8pm. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 1PM to 6AM | 11PM to 8PM | 9AM to 5AM |
| 12PM to 6AM | 4AM to 8AM | 12AM to 2AM |
| 6PM to 9AM | 1AM to 2AM | 1AM to 7AM |
| 8PM to 6PM | 10PM to 9AM | 1PM to 8PM |
| 12AM to 3AM | 1AM to 4PM | 9AM to 4AM |
| 7AM to 10AM | 9PM to 7PM | 5PM to 9AM |
