A little worn out after all the Halloween festivities? Then you are in luck because this weekend, it's time to 'Fall Back,' which means that at 2 am on Sunday, November 3rd, most Americans will add an extra hour to their day by moving the clocks back. This age-old tradition that goes all the way back to World War One is observed in other parts of the world too - However, the dates differ, with most changing their clocks about a month earlier.