Currently the time stamps under questions or answers in Stack Exchange are displayed as MMM DD YY (e.g. Oct 09'09) when it's more than one year ago, e.g. in profile page:
Another example from Stack Overflow:
This is not native to me, and it really hurts my eyes because I have always to take a closer look to make sense of the most important information - year. How can I change its format to display dates in full year (e.g. Oct 09 2009) instead?