It was only relatively recently that I realised that the transposition of day and month that each does, also translates to the written out form. So in the US it’s common to say April 1st, whereas in the UK most would say 1st of April.
The most convenient way for most dates on a computer is yyyy-mm-dd however, so they always sort easily. You may have realised this when adding dates to filenames. Though a lot of software uses UNIX time which is, as you would expect, is “defined as the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970, not counting leap seconds." So midday on the 12th March this year (or March 12th) at midday is of course 1426161600.