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