Christmas is celebrated on January 7 by various Christian communities, including Coptic Orthodox Christians in Egypt, Ethiopian and Eritrean Orthodox Christians, and Eastern Orthodox communities that follow the Julian calendar, such as the Russian and Serbian Orthodox Churches. The date corresponds to December 25 on the Julian calendar, which currently falls 13 days later than December 25 on the Gregorian calendar.

The occasion celebrates the birth of Jesus Christ and holds deep religious and cultural significance for these communities. Coptic Orthodox Christians traditionally observe a period of fasting before Christmas, followed by special church liturgies, prayers, and festive meals shared with family and loved ones. Eastern Orthodox communities also mark the occasion with religious services, family gatherings, and traditions reflecting their cultural heritage. While many Orthodox Christians celebrate on January 7, others follow calendars that place Christmas on December 25.

Despite differences in customs and traditions, the occasion brings communities together in celebration of faith, family, and the birth of Jesus Christ.