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