On my Macbook Pro running Mac OS X 10.8.2 (Mountain Lion) all the birthdays from the "Birthdays" calendar are showing a day early in Calendar. E.g. When I browse to contact Joe Bloggs in Contacts it shows his birthday as 12/03/1987. When I go into Calendar, there is a full day event for Joe Bloggs' birthday on 11/03/1987.
In Calendar I have selected the correct timezone (New Zealand Time) and have also enabled "Turn on time zone support" in the preferences. On my iPhone, I have the same settings and the birthdays display on the correct date.
Is there anything I can do to get the birthdays to display on the correct date in Calendar on my Macbook Pro?
Edit: Just clarifying, the date format used here is dd/mm/yyyy.