Interesting. I think there are one or two other places (Japan?) which use YY/MM/DD as well.

On the time format, the U.K. is kind of middleground. The 24-hour clock is used much more commonly than in the United States (on bus and train timetables, for example), but not as often as in Europe. You won't hear people talk about going home at 18 hours, like you might in Europe, for example.

Ranger,
You sometimes use Y/M/D on invoices? Isn't that rather confusing? How could somebody know whether 03/04/02 is April 3, 2002 or April 2, 2003? [Linked Image]

C-H,
Yes, the U.K. went onto daylight savings (British Summer Time) last weekend. Changes back the end of October.