Speaking personally, my large, multinational company (140K+ employees worldwide) changed our Christmas days off from the 24th and the 25th to the 25th and the 26th this year, and I'm sure we're not alone. I would actually expect the 26th to be even more busier than the 25th, with capacity closures lasting longer throughout the day than on the 25th, but that's just a guess. A 10 is a 10, so it's going to be miserably crowded both days!