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