Orthodox Christmas Day 2025 Date. A large majority of russia’s 140 million people identify as members of the russian orthodox church, which calculates the date of christmas based on the julian calendar instead of the gregorian calendar used in the west. Two other important dates for orthodox christians are orthodox good friday commemorating the crucifixion of jesus christ and orthodox easter.

The nativity of our lord god and savior jesus christ. According to the julian calendar (used prior to gregorian calendar) the day falls on december.