Our weekends are different here. Our holidays are different as well (No x-mas holiday for instant). So I don't get exactly how this works, had to make sure
The only valid way to really talk about it is how that it's Christmas Eve and New Years Eve, which to north americans is just as good of an excuse to party away all day and all night as the actual day itself (especially new year's eve when there's celebration and countdowns of all kinds).
It's worth considering even if it's only the "eve"s.