I know that, except it counts dates from 1970, so 2009 becomes 39, and it counts months from 0, so August would not be 8, but 7.
Confusing, but true. Semi-human readable format if you ask me.
Then I blame poor documentation. I don't remember, but I don't think there was/is any such thing.Since Y2K a different field has been introduced for the full year: You were probably using the legacy field.