There are total 21 hours or 1260 minutes from 3am to 12am. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 7PM to 11AM | 9PM to 4PM | 4PM to 11PM |
| 4PM to 1PM | 11PM to 12AM | 8AM to 10AM |
| 10PM to 5AM | 7AM to 5PM | 10PM to 1AM |
| 11PM to 5AM | 1AM to 9AM | 4PM to 4AM |
| 7AM to 11PM | 5PM to 1PM | 4PM to 8AM |
| 9AM to 9PM | 12PM to 1PM | 12AM to 3AM |
