I can switch between them without issue, but (especially online) you don't always have the context needed to decide which to use. If I come across, say, "01/05/

I can switch between them without issue, but (especially online) you don't always have the context needed to decide which to use. If I come across, say, "01/05/2016", unless I know the country of origin for the site, I have no idea if that is 2016 May 1 or 2016 Jan 5.