There are total 13 hours or 780 minutes from 9am to 10pm. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 6AM to 2AM | 12AM to 12PM | 12PM to 8PM |
| 11AM to 3AM | 5PM to 6PM | 7AM to 4AM |
| 12PM to 1PM | 1PM to 3PM | 7PM to 9AM |
| 6PM to 9PM | 3PM to 9AM | 7PM to 2AM |
| 10PM to 5PM | 6AM to 2PM | 8PM to 10AM |
| 5PM to 11PM | 6AM to 10PM | 11PM to 7AM |
