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