All 3 main types are used in Canada – in French and in English.[30][31] Social Insurance applications for Canada use DMY format.[32] Passport applications[33] and tax returns[34] use YYYY MM DD. Nearly all newspapers use MDY (MMM[M] D, YYYY).[35] The default date format used by Microsoft Windows for English Canada for all-numeric dates (short-dates) is DD/MM/YYYY, and for long dates is MMMM D, YYYY in Windows XP and MMMM-DD-YY in later versions; for French Canada it is YYYY-MM-DD for short-dates and D MMMM YYYY for long-dates.
Damn, no wonder I could never get this right.