At least Switzerland/Germany/Austria. I think most of Europe actually. The domain is .ch, so that will be the Swiss locale. In my opinion there are two date fo

At least Switzerland/Germany/Austria. I think most of Europe actually. The domain is .ch, so that will be the Swiss locale. In my opinion there are two date formats that make sense: DMY (decreasing granularity) or YMD (increasing granularity). I tend to favor the latter because of ISO. MDY definitely doesn't make any sense at all.