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