I think that Sabbe-chan is confusing Christmas Eve with what date people give and receive their Christmas presents.
Christmas Eve is of course always the 24th, but in Sweden, that's also the day for presents, whereas people in the UK get their gifts on the 25th of December, which is Christmas Day. In Spain, if I'm not mistaken, Christmas gifts are exchanged at the 7th of January.
You see, Sabbe-chan? The dates remain the same all over the world, but the date for presents varies.