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