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