Epiphany
January 6 is the last day for Latinos who celebrate Christmas and Epiphany "Vision of God", which is also known as Three Kings' Day.
It is a Christian feast day that celebrates the revelation of God the Son as human in Jesus Christ. In Western Christianity, the feast commemorates principally (but not solely) the visit of the Magicians to the Christ child, and thus Jesus' physical manifestation to the Gentiles.
Moreover, the feast of the Epiphany, in some Western Christian denominations, also initiates the liturgical season of Epiphanytide.