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