The government set up a task force on Monday to deal with computer glitches that may arise today due to Tuesday's observance of the special leap year, which comes only once in 400 years. The task force was set up at the Prime Minister's Official Residence, where about 10 government officials were to stand by to handle potentialities. The government will make a 5:30 p.m. announcement on what problems, if any, occurred. The Gregorian calendar has a leap year every four years, in which an extra day is added to account for the fact that Earth actually takes approximately 365.25 days to orbit the sun. But over many centuries the difference between this approximate value and the more precise measurement of 365.242 days accumulates significantly. To offset this, this extra day is added only to those century years divisible by 400, such as 1600 and 2000. As a result, some computer programs not adapted to the special leap year calendar could mistake Feb. 29 for March 1.
