Was able to get 6 nights in Japan on 4 vacation days by leveraging Thanksgiving. Told relatives I would miss Thanksgiving but attend Christmas, everyone thought that made sense. For those who celebrate and enjoy Christmas, I don't recommend missing Christmas for solo travel overseas, did that once and felt very isolated. People in the place I was visiting were celebrating their own Christmases and people I knew back home were celebrating Christmas and I wasn't there. With Thanksgiving it's likely not a holiday in the country you're visiting so everything is open and for me at least, I don't really care about missing Thanksgiving, a better version happens 1 month later.