Translation:Christmas is on December twenty-fifth.
No its not the same - in Slovakia we also celebrate December 24th
Edit: weird I can't reply to elamorela directly so am using this way. In that case we are celebrating only Christmas' Eve. We have a dinner and get a presents in the evening and that's it. Our Christmas :) no celebrations on the 25th of December - its ordinary day for us. Some people go to church but I am not one of them. So Christmas is and always was for us 24th - I don't know anybody in Slovakia who is celebrating something on 25th :)
We in Poland have Christmas Eve dinner on the 24th, but then we have bank holidays on 25th and 26th - two days of Christmas and we celebrate it, most of us go to special masses at churches, visit Christmas cribs (known as 'szopka' in Polish) we have fancy dinners and family gatherings.
Here is a website which explains the French method of forming the date: http://french.about.com/od/grammar/a/dates.htm and another location on that site explains other French expressions using numbers: http://french.about.com/od/vocabulary/ss/numbers.htm