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
| 3PM to 7PM | 9AM to 5AM | 11AM to 9PM |
| 8AM to 5PM | 12AM to 4AM | 10AM to 8PM |
| 9PM to 3AM | 8PM to 1PM | 3AM to 10PM |
| 11AM to 5AM | 6PM to 3PM | 6AM to 12AM |
| 3AM to 9PM | 11AM to 8PM | 2PM to 6PM |
| 11AM to 2PM | 4AM to 2AM | 8PM to 9AM |
