Pravo da ti kažem do pre dve nedelje nisam ni ja znao.
Evo na ovoj Wikipediji piše isto:
,,Orthodox churches
For details on religious observances, see Christmas Eve.
Some Eastern Orthodox national churches known as old calendarists, including those of Russia, Georgia, Egypt, Ukraine, the Macedonia, Serbia and the Greek Patriarchate of Jerusalem continue to use the older Julian Calendar. While they celebrate Christmas on December 25 in that calendar, until 2100 this is 7 January in the modern Gregorian Calendar used by most civil authorities and other Christian churches. Oriental Orthodox churches also use their own calendars."
Ali ne slave svi pravoslavci sada. Na primer oni Bugari, Rumuni i još dosta slave 25. decembra kao i ovi katolici.