There are total 18 hours or 1080 minutes from 3am to 9pm. In words, this duration is equal to eighteen hours or one thousand eighty minutes.
How many hours from
| 9PM to 8PM | 9AM to 4AM | 5AM to 1AM |
| 1AM to 10PM | 12PM to 10AM | 3PM to 1PM |
| 9AM to 1AM | 7AM to 3AM | 2PM to 3AM |
| 12PM to 9AM | 11AM to 3PM | 10PM to 11AM |
| 9PM to 6PM | 5AM to 6AM | 4AM to 12PM |
| 3AM to 12AM | 3AM to 4AM | 4AM to 7AM |
