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