Java::TTX

import java.util.*;

public class TTX {
     public static void main(String[] args) {
         Calendar cal = GregorianCalendar.getInstance();
         long now = cal.getTimeInMillis();
         cal.set(cal.get(Calendar.YEAR), 12-1, 25);
         long x = cal.getTimeInMillis();
         System.out.println((x - now) / (1000 * 60 * 60 * 24));
     }
}