It gets worse. Some browser APIs respect `LC_TIME`. Others say "fuck standards, I'm using `LC_MESSAGES`". This means that if those locales differ about say, y

It gets worse. Some browser APIs respect `LC_TIME`. Others say "fuck standards, I'm using `LC_MESSAGES`". This means that if those locales differ about say, y/m/d ordering, it is quite possible for the way the browser formats a date to be different than the way it parses the date.