O.K., many of the Orthodox resisted switching to the
Gregorian calendar from the
Julian calendar, and so though their societies run on the Gregorian calendar, they continue to celebrate their religious holidays according to the Julian one. That means a difference in date. It does not mean that they do not celebrate on the 25th. --
MichaelTinkler
If you want to be real specific, Dec 24 Christmas Eve is the most important part of German Xmas and I believe other Europeans too? Everyone goes to church and celebrates on the 24st. 25th is the gathering of the family to the traditional Christmas goose dinner.26th is the 2. Xmas day.H. Jonat