In Japan you don't have to wait until after Thanksgiving to put up the Christmas decorations, mostly because there is no Thanksgiving. Japanese people actually don't even celebrate Christmas, being at least 84% Shinto or Buddhist. But despite this, and in no small part due to globalization, Christmas decorations are still fairly present in Japan. The same can be said for Halloween decorations, despite no trick or treating taking place.
There is one Japanese tradition that has recently sprung up for Christmas here in Japan. Every Christmas Eve tons of people flock to KFC for its "Christmas Eve Dinner." It's become the thing to do on Christmas Eve.
I should also note that Colonel Sanders is in front of virtually every KFC in the country, and is dressed up from time to time for various reasons.