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
| 9AM to 10AM | 4PM to 11AM | 7AM to 8PM |
| 6AM to 7PM | 1AM to 7PM | 12AM to 3AM |
| 3AM to 10AM | 2PM to 1AM | 1PM to 9PM |
| 5AM to 4AM | 4AM to 9AM | 5AM to 3AM |
| 6PM to 12AM | 3AM to 4AM | 9PM to 5PM |
| 5AM to 3AM | 3PM to 4PM | 9AM to 5PM |
