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