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July 26, 2018 01:00 pm

Big Tech Warns of 'Japan's Millennium Bug' Ahead of Akihito's Abdication

MightyMartian shares a report from The Guardian: On April 30, 2019, Emperor Akihito of Japan is expected to abdicate the chrysanthemum throne. The decision was announced in December 2017 so as to ensure an orderly transition to Akihito's son, Naruhito, but the coronation could cause concerns in an unlikely place: the technology sector. The Japanese calendar counts up from the coronation of a new emperor, using not the name of the emperor, but the name of the era they herald. Akihito's coronation in January 1989 marked the beginning of the Heisei era, and the end of the Shwa era that preceded him; and Naruhito's coronation will itself mark another new era. But that brings problems. For one, Akihito has been on the throne for almost the entirety of the information age, meaning that many systems have never had to deal with a switchover in era. For another, the official name of Naruhito's era has yet to be announced, causing concern for diary publishers, calendar printers and international standards bodies. It's why some are calling it "Japan's Y2K problem." "The magnitude of this event on computing systems using the Japanese Calendar may be similar to the Y2K event with the Gregorian Calendar," said Microsoft's Shawn Steele. "For the Y2K event, there was world-wide recognition of the upcoming change, resulting in governments and software vendors beginning to work on solutions for that problem several years before January 1, 2000. Even with that preparation many organizations encountered problems due to the millennial transition. Fortunately, this is a rare event, however it means that most software has not been tested to ensure that it will behave with an additional era." Unicode's Ken Whistler wrote in a message earlier this month: "The [Unicode Technical Committee] cannot afford to make any mistakes here, nor can it just *guess* and release the code point early. All of this is pointing directly to the necessity of issuing a Unicode 12.1 release sharply on the heels of Unicode 12.0, incorporating the addition of the new Japanese era name character, which all vendors will be under great pressure to immediately support in 2019 software releases."

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