Yes but in virtually the rest of the world it's the 11th of December. The US is one of the few countries to use the format mm-dd-yy, Most use dd-mm-yy.
Not this crap again. Use YYYY-MM-DD. Then nobody would be confused. There's even a ISO spec saying it's the preferred format. (And before you say it, no, nobody uses YYYY-DD-MM, it's not a valid format anywhere.
. "The purpose of this standard is to provide an unambiguous and well-defined method of representing dates and times, so as to avoid misinterpretation of numeric representations of dates and times, particularly when data is transferred between countries with different conventions for writing numeric dates and times.
And I don't know why you mentioned China. They don't use a 4-place year, but it's still not in Y-D-M order.
Edit: Wait, maybe you didn't notice that I reversed the day and month in my parenthetical statement?