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