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