The Times Square Ball Drop was canceled in 1942 and 1943 because of wartime blackouts.
During World War II, New York City observed blackout restrictions intended to reduce visible light that might help enemy aircraft or ships navigate. As a result, the illuminated ball could not descend in Times Square for New Year's Eve in 1942 or 1943.
Crowds still gathered quietly, and the customary celebration was replaced by a minute of silence followed by the ringing of church bells. The ball drop returned in 1944, after which the tradition continued through later decades with further changes to the ball and broadcasting arrangements.
This interruption is sometimes overlooked because the event has become an annual symbol of continuity. The cancellation did not end New York's New Year's celebration; it changed the ceremony to fit wartime conditions. Times Square's lighted signs and large crowds also faced restrictions during those years.