There are total 3 hours or 180 minutes from 1pm to 4pm. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 1AM to 9PM | 8AM to 11PM | 11AM to 6AM |
| 9PM to 11AM | 3AM to 12PM | 3PM to 5PM |
| 11AM to 7AM | 9PM to 1AM | 5PM to 9AM |
| 1PM to 9AM | 4AM to 3AM | 12AM to 1AM |
| 7AM to 5PM | 1PM to 10AM | 10PM to 11PM |
| 1PM to 7AM | 8PM to 12PM | 2PM to 5PM |
