Sounds a little familiar. Probably heard someone else on here mention it somewhere. But everyone's got a "big generous giving to sick kids and poor people season" thing going on around that time, just with different names so it works out, I guess. Sounds kinda like a pain in the ass to keep track of, though, once you get outside of the "whose party do you go to?" thing. You say "We'll do it December first" and they'd have to figure out if that's Kishvalev fifteenth or something...