Christmas lasts for a full forty days, ending with the Feast of the Presentation on 2 February!

In Southern Europe decorations remain up until the 2nd February.

February 2nd is 40 days after Christmas Day.
There is a custom in many places in the Catholic world to keep the Creche and some of the garland up in churches and homes until February 2, the Solemnity of the Presentation of Our Lord in the Temple.
It is also known as Candlemas as lighted candles and all liturgical candles are blessed on this day as well. In the secular world, February 2nd is also Groundhog Day linked to the lighted candles in the dark of that morning and the groundhog seeing his shadow because of it.