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