It's a complete surprise to the rest of the world that the Americans write the date in the format "month/day/year" instead of "day/month/year" like everyone else. So "9/11" is in fact September the eleventh, and not the ninth of november. Even more ludicrous is the practice of writing the time as "minute:hour:second", this causes enormous problems if you work in an organisation which must function multinationally. So much confusion is caused by the crackpot American date and time formats.
Really? I haven't paid attention. We write day\month\year. It's really intersting. Are there any strange differences like this?