The Christian celebration of the birth of Jesus Christ, observed on December 25.
This is a Gregorian calendar holiday — observed on the same date worldwide. There is no tithi or panchang significance to the date; it does not shift by timezone.
Christmas commemorates the Nativity of Jesus Christ. Celebrated since the 4th century, it has become one of the most widely observed festivals in the world, blending religious traditions with cultural customs — gift-giving, family meals, decorated trees, carols, and acts of charity. The date of December 25 is a fixed Western Christian observance; Eastern Orthodox churches following the Julian calendar mark Christmas on January 7.
Computed for Ulan Bator (Asia/Ulaanbaatar) using local sunrise, sunset and astronomical positions.
Other observances and vrats falling in December 2026, with dates computed for Ulan Bator.
A more detailed account of Christmas — its mythology, regional variations, and rituals — is being prepared.