Some Christians choose to celebrate Rosh Hashana, or the Feast of Trumpets. God calls this day a "feast of the Lord" and it has great significance for all of mankind.
For later reading
Only those Christians that misinterpret the new covenant and place continuing significance on the old covenant cultic rituals that God gave to national Israel, which all passed from the scene in the 1st century.
Thankfully they are a minority.