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