Orthodox Christmas Date

Russian Orthodox Christmas Date

Several Eastern Orthodox Churches keep their liturgical year on the Julian calendar, among them the Russian, Serbian, Georgian, Jerusalem, and Ethiopian patriarchates. That calendar now sits 13 days behind the Gregorian civil one, so the feast of the Nativity (December 25 by the Julian reckoning) lands on January 7 in Gregorian terms.

That 13-day gap holds steady from 1900-03-01 through 2100-02-28. On March 1, 2100 it widens to 14 days, since the Julian calendar counts every 100th year as a leap year and the Gregorian one does not. Greek Orthodox and some Antiochian parishes switched to the Revised Julian calendar back in 1923 and now keep Christmas on December 25, but the Russian Orthodox Church, with roughly 110 million faithful, has stayed on the older reckoning.

The season opens with a 40-day Nativity Fast (Filipovka). Its high point is the Vsenoshchnoye Bdeniye (All-Night Vigil) on January 6, after which the celebration runs on through Svyatki (Holy Days) up to Theophany on January 19. The table typically features kutia (a sweet wheat berry porridge), sochivo, and 12 meatless dishes that stand for the Apostles.

Applications

It comes in handy for diaspora calendars, ecumenical scheduling, and trips to Russia, Serbia, Georgia, or Ethiopia. HR teams use it to set holiday policy for Orthodox employees, and it shows up in liturgical software too. There's also the matter of historical research on pre-1918 Russian dates: Russia moved its civil calendar to the Gregorian in 1918, but the Church stuck with the old one.

FAQ

Why January 7 instead of December 25? The Russian Orthodox Church still marks December 25 on the Julian calendar, and that day currently maps to January 7 on the Gregorian (civil) calendar.

Will the date ever change? It will. Once February 28, 2100 passes, the Julian–Gregorian gap grows to 14 days, which pushes Orthodox Christmas to January 8 Gregorian from 2101 onward (and that holds until 2200).

Do all Orthodox Christians celebrate on January 7? No, they don't. The Greek, Romanian, Bulgarian, and Antiochian Orthodox go by the Revised Julian calendar and celebrate on December 25. The Russian, Serbian, Georgian, Jerusalem, Polish, Ethiopian, and Eritrean churches stay with the old calendar.