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