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