13.12.11 is more significant to me, in that it conforms more closely with ISO 8601, which specifies that dates shall be published in the format of yyyy.mm.dd and not mm.dd.yy.

_________________
The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.