What Effect will the Millennium Bug have on Society? People talk about the Millennium Bug, but few actually know what it is and how big an effect is could have. Virtually everything is our society is vulnerable, from water and electricity to our phone bills and savings accounts. The Millennium Bug is a design fault dating back to the early days of computers and the way they store time and date. When you turn on your computer it knows the time and date thanks to a built in clock which memorises the date in the form of month/day/year. The problem is that when we go from 99 to 00 many computers won't know whether this means the year 1900, 2000 or the year that the computer was created. This