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