https://www.rik-kisnah.ai/tags/millennium/Recent content in Millennium on Rik Kisnah - BlogHugoenThu, 20 Dec 2001 00:00:00 +0000https://www.rik-kisnah.ai/posts/y2k-debugging-journey-1999-2001/Thu, 20 Dec 2001 00:00:00 +0000https://www.rik-kisnah.ai/posts/y2k-debugging-journey-1999-2001/The Crisis That Never Was (1999-2000) Summer 1999: The world was panicked. Every computer system would crash at midnight on Dec 31, 1999 because programmers in the 1970s had stored years as 2-digit numbers. 99 rolled to 00, and—disaster. At NTU, we treated it seriously. Every system we touched had the same problem: years stored as YY instead of YYYY. The fix was mechanical but tedious: find every date field, add validation, test like hell.