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