This post is part of the Canadian Style series.
7.20 Use of commas in dates
You do not need commas when writing dates in the order day-month-year. If you use month-day-year order, a comma separates the day and year. The year should be followed by a comma within a sentence.
I was married 5 May 1995 in the Seattle area.
I started in my current job May 7, 2001, as a practicum student.