The first two numbers (left to right) indicate the last two digits of the year. This is followed by the month and then the date.

For the date on a can: (Expiration date is the first row on the bottom of the can; the letters in the second row are a manufacturing site code)
E.g. 14.03.25 means March 25, 2014

For the date on a plastic bottle:
E.g. 14.03.25 means March 25, 2014