Epiphany or Three Kings' Day (Western Christianity) or Theophany (Eastern Christianity), and its related observances: Little Christmas (Ireland)

Little Christmas, also known as Old Christmas, is one of the traditional names among Irish Christians and the Amish for 6 January, which is also known more widely as the Feast of the Epiphany, celebrated after the conclusion of the twelve days of Christmastide. Epiphany, observed on 6 January, is preceded by Twelfth Night on 5 January. Believers prepare for Old Christmas through fasting, which is opened on Old Christmas through the consumption of Christmas dinner. The emphasis of Old Christmas celebrations is on reflecting on the birth of Jesus through attending church services and visiting with family. Popular Little Christmas customs include burning Christmas candles, singing Christmas carols, Epiphany singing, chalking the door, and having one's house blessed.

The Irish calendar is the Gregorian calendar as it is in use in Ireland, but also incorporating Irish cultural festivals and views of the division of the seasons, presumably inherited from earlier Celtic calendar traditions.

January 6 is the sixth day of the year in the Gregorian calendar; 359 days remain until the end of the year.