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