Epiphany is on January 6. Epiphany means “to show” or “to make known” and is often called the Gentile Christmas because this is the celebration of when the Magi, who were Gentiles, came to worship Jesus. The Epiphany season continues until the day before Ash Wednesday. The color for most of the season of Epiphany is green. White is used on the Day of Epiphany, on the first Sunday after January 6 when we celebrate the Baptism of Our Lord, and on the last Sunday before Ash Wednesday when we celebrate the Festival of the Transfiguration.
– From Lutheranism 101, p. 229
For more information, including a list of historic readings, click here.