I hereby propose that we use metric dates: YYYY-MM-DD.
The international standard date notation is: YYYY-MM-DD
where YYYY is the year in the usual Gregorian calendar, MM is the month of the year between 01 (January) and 12 (December), and DD is the day of the month between 01 and 31. source: https://www.cl.cam.ac.uk/~mgk25/iso-time.html
The Government of Canada recommends the YYYY-MM-DD format for writing numeric dates. source: https://en.wikipedia.org/wiki/Date_and_time_notation_in_Canada