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