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