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