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