Altastrofae

okay I checked out the data, and your right apparently. The solstice can fall anywhere between the 20th and 23. I thought it was like 22 to 24 or something, I dont know. Then (the skeptic I am when it comes to anything I do research on) I did the math. Calculating the right momentum with the know Eliptical measures was a stretch. took me 30 - 45 min to recalculate exacts from baseline measurements was a stretch (why do I waste my time with this?). Anyways, all the confusing number talk aside, you're right. Roughly, there is no more than 4 full days between the Winter Solstice and Christmas. I really dont know why I'm this over obsessive when it comes to the correctness of data, but I am, I really don't even think Moondancer would go this far with her studies... 

Lol, I just Googled it. Thought that would be faster than analyzing the Moon's orbit  

I wonder if timezones make it so it can occur on the 23rd in some parts of the world (like if it's on the 22nd in Hawaii, it's the 23rd in Japan). So if the timezone is extreme enough, it would have to be 3-5 days or 2-4 days before Xmas (since some places can't experience it on the 20th or 23rd).

Time zones play a very minor role, as the way time zones work, two places can only have a 12 hour time difference at maximum, but thats more of a human construct, so if its 22nd in Hawaii, Japan's solstice at 23rd has already passed, its the same day relative to where you are. The solstice is just the shortest day, caused by the Earths weird tilt, orbit, and momentum, and how it speeds up or slows down at points never remaining at a fixed orbit. So its relative from any one point, but it will be the same date from each. In that situation, Japan's Solstice will have passed

This also means that, no, everywhere can experience the solstice on all available dates. Think 3 dimmensional rather than just with time