In their format settings, you have to pick a country and that determines the format of dates, time, numbers, and the unit system.
Of all the countries, none of them has the sane choice for all of the fields, namely: ISO 8601 for dates and times with 24h (no AM/PM), metric system (or SI, whatever), and dot as decimal separator.
You can have sane dates, but then you have AM/PM in the clock. You can have 24h clock, but then you have a comma as decimal separator, etc.
Can we add a country "Saneland" with the sensible options for all fields? cause that's where I want to be from. Saneland: the imaginary place where we use reasonable standards and things work.