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