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