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