New Year's Eve is a spectacular global celebration to say goodbye to the old year and welcome the new year. The new year is celebrated on December 31, the last day of the Gregorian calendar, at midnight, when we transition from the old year to the new, and is marked by gatherings among friends and families and, in some of the world's largest cities, a mesmerizing citywide parties, often featuring fireworks and music. Noisemaking is a typical part of most cultural celebrations for the new year, as is often said, “Let's ring in the new year!”