When creating structured data using Schema.org/Person, does the birth date need to be in a specific format?
Currently on the website I am working on the birth dates are written as: "15 Jan 1980"
Should it be written as "15.01.1980" or perhaps using hyphens instead of the period sign?
Is it a specific format that should be followed?
This question applies for any Schema.org type that has a "date" field, not just for