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