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