There are total 21 hours or 1260 minutes from 7pm to 4pm. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 11AM to 10AM | 6PM to 3AM | 1PM to 5AM |
| 10AM to 10PM | 7PM to 11PM | 12AM to 4PM |
| 10PM to 10AM | 4PM to 12AM | 1PM to 2AM |
| 8AM to 12AM | 9PM to 6AM | 10PM to 5PM |
| 6PM to 5PM | 4AM to 6AM | 11PM to 7AM |
| 7AM to 2PM | 4AM to 3PM | 12AM to 3AM |
