Google Docs date in yyyy/mm/dd format (year first)

Question

My question is similar to Google Docs date in “dd/MM/yy” format and How can I change the input format for dates in Google Docs' spreadsheet?

BUT

unlike those answers, I'm trying to get the format with years first, which is non-ambiguous, more tech friendly and can be sorted alphabetically. I'm not aware of any locale that would put years first ?

Also, is it possible to automatically convert dates that would be typed with dd/mm/yyyy to yyyy/mm/dd ? (assuming my colleagues locale is indeed dd/mm/yyyy and NOT mm/dd/yyyy

Answer 1

I did not realize there was a "Format > Number > More formats > More date n Time formats" where I could specify the exact format I want, since the default date format is not what I am looking for.

It also handles auto-formatting of further inputs