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