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
| 4PM to 3PM | 2PM to 5PM | 3AM to 11PM |
| 9AM to 8PM | 6AM to 7PM | 12PM to 11PM |
| 2AM to 5PM | 8AM to 3PM | 11AM to 2PM |
| 1AM to 12PM | 4PM to 5AM | 2PM to 8AM |
| 5AM to 7AM | 3AM to 8PM | 10PM to 3PM |
| 2AM to 9AM | 11PM to 9AM | 4PM to 6AM |
