For the next week or so we can expect to see a lot more publicity about the impending daylight-saving change in the U.S., Canada, etc., which first hits our clocks Sunday (typically at 02:00). Google News currently lists about 1700 news articles on the subject of "daylight saving", and we can expect that number to climb. Nobody has time to read all this stuff, but here are a few selected items, if you care for this sort of thing. (Disclaimer: I contributed to some of them.) Lists of vendor advisories: http://www.calconnect.org/dstlinks.html http://www.reganfamily.ca/dst/ There is now a Wikipedia page just for this event, which contains more vendor advisories (one for the tz database itself!): http://en.wikipedia.org/wiki/Y2K7#Zoneinfo A good summary of Y2K7, suitable for non-techies, is: Steve Lohr, "Time change a 'mini-Y2K in tech terms", New York Times <http://www.nytimes.com/2007/03/05/technology/05daylight.html?em&ex=117333000...> (2007-03-05). Gartner has estimated IT costs between $500 million and $1 billion; see Ben Arnoldy, "Latest computer glitch: daylight saving time", Christian Science Monitor <http://www.csmonitor.com/2007/0307/p02s01-stct.html> (2007-03-07). In an informal poll taken yesterday at a Computerworld IT conference, 52% of respondents said that they were done with upgrading, 39% said they're not done yet, 4% said they hadn't even started (!), and 4% said they didn't know the change was coming (!!). The related story said that Microsoft is still issuing patches. Todd R. Weiss, "Premier 100: Conference attendees deal with daylight-saving time fixes from afar", Computerworld <http://www.computerworld.com/action/article.do?command=viewArticleBasic&arti...> (2007-03-06). PG&E, the main utility in northern California, estimated that it'd take $38 million for them to upgrade their meters to account for daylight-saving time. Instead, they got permission from the California Public Utilities Commission to change their billing algorithm during the affected period -- i.e., they changed the rules rather than fixing their clocks. Paul McDougall, "PG&E Says Patching Meters For An Early Daylight-Saving Time Will Cost $38 Million", InformationWeek <http://www.informationweek.com/news/showArticle.jhtml?articleID=197700487> (2007-03-01)