There are total 21 hours or 1260 minutes from 12pm to 9am. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 3AM to 10PM | 4PM to 9AM | 10AM to 11PM |
| 8PM to 11AM | 1AM to 11PM | 3AM to 1PM |
| 11AM to 12AM | 11PM to 2PM | 10AM to 2AM |
| 12AM to 11AM | 10AM to 11PM | 5PM to 9PM |
| 5PM to 1PM | 9AM to 12AM | 7AM to 12PM |
| 5PM to 10PM | 5PM to 5AM | 6AM to 10AM |
