> With every new version, I have to worry about what's going to be broken this time.

We used to be able to force IDO-8601 dates with `LC_TIME=en_DE.utf-8` but now Thunderbird ignores even that. I love Thunderbird, but with the MM-DD-YYYY date format (yes, neither little- nor big- endian but rather the day is in the fucking middle) I absolutely cannot use it.