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