The Globe and Mail Style Guide
Be cautious when approaching dates written in the form 2/12/03 or 2-12-03. In general U.S. practice, the form represents Feb. 12, 2003, following that style of writing the date: month, day, year. In Europe, it represents Dec. 2, 2003, following the European style of day, month, year (2 December 2003). Canada's preference tends to be day, month, year, but it cannot be assumed that all Canadian sources use it this way.
Note that an increasingly popular standard of the International Organization for Standardization (ISO) is year, month, day, which, since it descends from the longest unit to the shortest, permits the addition of hour, minute, second: 2004-05-20 06:30:43. See numbers.