There are total 23 hours or 1380 minutes from 9am to 8am. In words, this duration is equal to twenty-three hours or one thousand three hundred eighty minutes.
How many hours from
| 10AM to 9PM | 8AM to 12PM | 12PM to 12AM |
| 4AM to 10PM | 7AM to 10PM | 7PM to 1AM |
| 5AM to 4PM | 12AM to 12PM | 6PM to 1PM |
| 8AM to 4AM | 9AM to 12AM | 6AM to 1AM |
| 12AM to 10PM | 6PM to 4AM | 6PM to 9AM |
| 2PM to 11AM | 1AM to 7AM | 8PM to 1PM |
