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