There are total 23 hours or 1380 minutes from 10am to 9am. In words, this duration is equal to twenty-three hours or one thousand three hundred eighty minutes.
How many hours from
| 8AM to 10PM | 6PM to 12PM | 11PM to 8PM |
| 6AM to 12AM | 11AM to 2PM | 12PM to 8AM |
| 8PM to 9AM | 7PM to 7AM | 7PM to 1AM |
| 4AM to 2PM | 11AM to 4PM | 7AM to 11AM |
| 10AM to 11AM | 6AM to 9PM | 3PM to 4AM |
| 6AM to 9PM | 12PM to 8AM | 12PM to 4PM |