In Germany, Christmas Eve (Heiligabend, December 24) is the primary day of celebration. Churches hold services throughout the day—many families attend afternoon or midnight Mass.
Christmas Day (December 25) and Boxing Day (December 26) are national holidays. Some attend additional services, but the focus shifts to family gatherings, feasting, and relaxation.
Church attendance peaks on Christmas Eve, even among those who rarely attend otherwise—a cultural as much as religious tradition.