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