I have a code 0ddmyLxx where after the leading 0 is the day, month, year, location;xx is a machine number. The Location is constant as "S".
The year is simple by added the number to 2000, and the months of the year by convention are: 1,2,3,4,5,6,7,9, X, N,D where X is Oct, N is Nov and D is Dec...