d/m/y (day, month, year) is used by:
Albania, Argentina, Australia, Austria, Belgium, Bolivia, Brazil, Bulgaria, Canada, Chile, Colombia, Czech Republic, Denmark, Dominican Republic, Ecuador, Estonia , Finland, France, Germany, Greece, Guyana, Hong Kong, Ireland, India, Israel, Italy, Lithuania, Mexico, Netherlands, New Zealand, Norway
(d.m.y; the fraction form d/m-y is common, but incorrect), Paraguay, Peru, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Spain, Singapore, Sweden, Switzerland, Thailand, Turkey, Ukraine, United Kingdom, Uruguay, Venezuela.
(...)It is also notable that while month, day, year is generally regarded as acceptable (alongside day, month, year) in Ireland and the UK, it is regarded as unacceptable to write in m/d/y (i.e. April 14, 2007 would be acceptable, while writing the same date as 04/14/07 would not be).
yyyy-mm-dd (year, month, day), the ISO 8601 standard, is used by:
Canada , China, Hong Kong, Hungary, Japan, Korea
Latvia, Norway, South Africa, Sweden, Taiwan.
It is often used in scientific, technical or international communication.
yyyy-mmm-dd
Canada
m/d/y (month, day, year) is used by:
Canada
Kilde:
http://en.wikipedia.org/wiki/Calendar_date
Som vi ser er standarden d/m/y det vanligste. Om jeg ikke tar veldig feil er dette introdusert i bla UK sammen med det metriske systemet. Mener vel at også USA skal over på denne datoformen.
Som vi ser er Norge også representert under yyyy-mm-dd. Så det er ikke helt standarisert. Canada ser imidlertid ut til å ha det enda værre.