Answer:
December 31 is the 365th day of the year in the Gregorian calendar. It is the 366 day in leap years. Y2K was a problem for both digital and non-digital documentation and data storage situations which resulted from the practice of abbreviating a four-digit year to two digits. Y2K bug was a clicking time bomb for all major computer applications. The computer and system application companies came out with year 2000 compliant operating systems and system software. IT companies around the world spent billions of dollars to go through their entire application source code to look for the Y2K bug and fix it. Almost everybody raced around to make themselves Y2K compliant before the fast approaching deadline. Finally when the big day came, many utilities and other companies switched off their main computers and put the backup computers on work. When the clock ticked Jan 1, 2000, no major problems were reported. Almost every bank worked fine, no major power outages were reported, airplanes still flew and the whole world went on with its normal life.