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