In western Christian tradition, January 6 is celebrated as Epiphany. It goes by other names in various church traditions. In Hispanic and Latin culture, as well as some places in Europe, it is known as Three Kings’ Day (Span: el Dia de los Tres Reyes, la Fiesta de Reyes, or el Dia de los Reyes Magos; Dutch: Driekoningendag). Because of differences in church calendars, mainly between the Eastern Orthodox and the western Catholic and Protestant traditions, both Christmas and Epiphany have been observed at different times in the past. Today, most of the Eastern Orthodox traditions follow the western church calendar. The exceptions are some Greek Orthodox Churches and related traditions (e.g., Russian and Serbian Orthodox) that still follow the older calendar and celebrate Epiphany as the Theophany on January 19th.

Epiphany is the climax of the Christmas Season and the Twelve Days of Christmas, which are counted from December 25th until January 5th. The day before Epiphany is the twelfth day of Christmas, and is sometimes called Twelfth Night, an occasion for feasting in some cultures. In some cultures, the baking of a special King's Cake is part of the festivities of Epiphany (a King's Cake is part of the observance of Mardi Gras in French Catholic culture of the Southern USA).