The date conundrum has been around and discussed forever, although ‘conundrum’ is really a misnomer. Quite simply the correct way to format a date is YYMMDD - or YYYYMMDD - any other choice is just wrong. Opinionated? Yup. Wrong? No.
🔗 How the World Agreed on a Date Format (Except the US) does a really good job of laying out the story and the challenge, ending with the observation that …
Us Americans haven’t adopted it (yet). We still write 06/08/2026 on bank checks, forms and filings, but the machines we all use are on 8601 and they are doing most of the talking.