Russians call Christmas рождество or rozhdestvo.
Boldog Karácsonyt!
Boldog Karácsonyt
they call it Christmas Day!
Japanese people call Christmas, Kurisumasu.
Christmas
Christmas
Christmas
Because you are an individual, and Hungary is a nation which many individuals call home.
Hungarians.
The people of Great Britain call it Christmas.
Canadians that celebrate Christmas call it Christmas if they speak English and Noel if they speak French.