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