There are total 21 hours or 1260 minutes from 9am to 6am. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 1PM to 11AM | 9AM to 8AM | 11AM to 12PM |
| 9PM to 3PM | 8AM to 3AM | 12PM to 7PM |
| 2AM to 4PM | 5AM to 2PM | 4PM to 8AM |
| 2AM to 8AM | 8AM to 6AM | 4PM to 5PM |
| 10PM to 6PM | 10PM to 5PM | 6AM to 7PM |
| 4PM to 3PM | 6AM to 8AM | 5AM to 10AM |
