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