TRIVIAL PURSUITS: In what years did the New Year’s ball drop in Times Square not happen?

The ball has been lowered every year since 1907, with the exceptions of two consecutive years. Can you guess which years the ball drop ceremony was suspended and why?

In 1942 and 1943, the Times Square ball drop ceremony was suspended due to the wartime “dimout” of lights in New York City. However, according to the website for Times Square, the crowds still gathered in those years and greeted the New Year with a minute of silence followed by the ringing of chimes from sound trucks parked at the base of the tower.