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