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Unofficial Win2K Daylight Saving Time Fix

Posted by kdawson on Thu Jan 11, 2007 02:29 PM
from the it's-about-time dept.
Saturn2003a writes "Microsoft has stated that they will not be offering a patch for the new US Daylight Saving Time for Windows 2000 and earlier. Only customers with an extended support agreement can get a Hotfix from Microsoft. To get around this, IntelliAdmin has created an unofficial patch (source code provided) that will fix Daylight Saving Time on Windows 2000 and Windows NT machines."
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Cheeze asks: "As I am sure some of you know, Daylight Saving Time is slated to change this year thanks to The Energy Policy Act of 2005. This means nothing to the large majority of the population except they will either sleep late one day or have to commute in the dark. To a select few, this is a crunch time akin to the Y2K fiasco, only there has been almost zero publicity recently. These select few are the ones responsible for updating the millions of computers, both servers and workstations, with the new time zone information. For newer servers, this usually means just install a patch and reboot (which is slightly more than mildly inconvenient). For older servers, this is basically an 'End of Life' declaration. Servers running software for which no patch is available will be unable to update their own clocks. This doesn't seem like such a big deal until you realize Microsoft is only offering patches for Windows XP and beyond, and Sun will not be supporting Solaris 7 and older. That should knock a large percentage of the computers 1 hour off for a few weeks this spring. What are you doing in your datacenters to prepare?"
[+] Hardware: Is Daylight Saving Shift Really Worth It? 652 comments
Krishna Dagli writes "Two Ph.D. students at the University of California at Berkeley say that Daylight Saving Shift will not do any good or create any energy savings. We are already spending money for software upgrades in the name of saving energy and after reading following article I wonder has congress really studied the impact of DST shift? " I also read some back story on the concept; OTOH, I found TiVo's suggestions that I manually change everything on my Series 1 device to be somewhat...insulting.
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  • My fix? (Score:3, Funny)

    by Anonymous Coward on Thursday January 11 2007, @02:31PM (#17561074)
    I use Zulu time.

    I haven't had an issue yet.
  • Yeah, right (Score:5, Funny)

    by zr-rifle (677585) <zedr@zedr.c3.14159om minus pi> on Thursday January 11 2007, @02:33PM (#17561126) Homepage
    but what about us DOS users?
  • by celardore (844933) * <celardore@gmail.com> on Thursday January 11 2007, @02:33PM (#17561138) Homepage
    About time too!

    (Sorry...couldn't resist)
    • Re:and it's.... (Score:4, Insightful)

      by camperdave (969942) on Thursday January 11 2007, @03:01PM (#17561776) Journal
      I think it's about time that we just split the difference, adjust the clock by half an hour, and leave it there.
      • Re: (Score:3, Interesting)

        The problem with not adjusting the clock is that there are forces that are working to move the clock both forward and backward. In the book "Spring Forward - The Annual Madness of Daylight Saving Time" by Michael Downing, he covers the issue. The back cover of the book lists those who support and oppose Daylight Saving Time (DST).

        Some of those in support of DST:

        • Golfers
        • Major League Baseball
        • Barbecue industry

        Some of those opposed to DST:

        • Farmers
        • Hollywood movie studios
        • Television and radio broad
  • Well... (Score:3, Informative)

    by minvaren (854254) on Thursday January 11 2007, @02:34PM (#17561152)
    I suppose that's one way to say, "hurry up and migrate to XP^H^HVista."

    Fortunately, the corporate users with a domain will still have a DC as an authoritative time source, and can just adjust the time on one server to keep everyone else in sync.
  • clocks (Score:5, Interesting)

    by erbbysam (964606) on Thursday January 11 2007, @02:35PM (#17561174) Homepage
    Think of the millions of clocks worldwide with automated systems b/c there authors didn't think that daylight savings time would change... sorta reminds me of something I saw in a "How not to program" book "don't set pi as a constant, you might have to update it".
    I work for a large clock company and there sending out many (20+) people throughout the country to reprogram the clock controllers so that there DST tables can be automatically updated in the future, nothing like more summertime :D.
  • by WalterGR (106787) on Thursday January 11 2007, @02:36PM (#17561186) Homepage

    This knowledge base article [microsoft.com] from Microsoft describes how to use the Time Zone Editor utility (which you can download from that page) to adjust time zone settings.

    If you need to update several computers, it also describes which registry keys to export. You can then import those registry keys in a logon script or whatever.

    It's not like people/companies running Win2k are SOL.

    • by Atzanteol (99067) on Thursday January 11 2007, @02:55PM (#17561638) Homepage

      Grammar tip: "Effect" is a verb. "Affect" is a noun.

      Slashdot has enough trouble with grammar without you confusing things. :-P

      They can each be both, but the typical cases are "affect" as a verb, and "effect" as a noun. Linky [google.com].

      • I can't believe /. has let so many comments slip by without notice.

        It's, "Daylight Saving [wikipedia.org] Time," not, "Daylight Savings Time." It's not like we're, "savings teh 1337 daylights." (daylight is singular)

        At least the summary had it right.

        • Eh? From the first link [writersblock.ca] in the google search I linked to:

          "Affect" is usually a verb meaning "to influence".

          ...

          "Effect" is usually a noun meaning "result".

          There is a noun meaning for "affect" and a verb meaning for "effect", but they're uncommon. So you go ahead and come up with your clever term, and I'll come up with one for when one uses it inappropriately.

        • Re: (Score:3, Insightful)

          You are right. Let's call it a Hognocism [slashdot.org].
  • by Anonymous Coward
    Step 1: Kick users off your box
    Step 2: Change the time on your box
    Step 3: Make her open the box.

    It's my date in a box. Date in a box bay-beh.
  • Not Entirely Stuck (Score:3, Informative)

    by Cygfrydd (957180) <cygfrydd&gmail,com> on Thursday January 11 2007, @02:38PM (#17561234) Homepage
    According to the article, Win2k users can use the tzedit utility to edit the timezones, ostensibly to alter when/how DST occurs. My initial impulse was to say "what bastards!" (as is often the case with M$ related silliness), but this is only slightly ameliorated by this workaround. Just roll out a bloody patch, guys.
  • by random_dg (1002962) on Thursday January 11 2007, @02:42PM (#17561328)
    In the country I live in DST is on a different date every year, and is based on when some
    holiday happens to occur in the lunar calendar, so every year in our data centers we either
    change the clocks manually, or rely on the Domain Controller on changing the time for
    the servers and workstations in the domain.
    And we don't complain to Microsoft for not providing us a fix for it.

    -D
  • by SpaceLifeForm (228190) on Thursday January 11 2007, @02:43PM (#17561364)
    I knew it was just a matter of time.
  • by slughead (592713) on Thursday January 11 2007, @02:44PM (#17561384) Homepage Journal
    Direct from M$:

    Move to Arizona, Hawaii, or anywhere outside the US.
    • Re: (Score:3, Insightful)

      Or just live on GMT/UTC time. If the Australians can have their winter in the middle of summer, then Californians can have their lunch at dinnertime.
  • who cares? (Score:5, Funny)

    by cashman73 (855518) on Thursday January 11 2007, @03:05PM (#17561894) Journal
    I live in Arizona, you insensitive clod!
  • History? (Score:3, Informative)

    by nurbles (801091) on Thursday January 11 2007, @03:17PM (#17562158) Homepage

    If Microsoft's patch will cause Windows XP (or Vista) to show the WRONG time for files saved near the DST change dates/times in years past, then it is NOT A FIX. This DST change has very, very deep effects on every single program that processes ANY dates/times before 2007 in the US. Program that went back before the current DST settings have already dealt with this (or decided to be wrong), but for those of us with no data older than Windows itself, we've never had to worry about this...until now.

    For example, a power company wants to compare the power usage trend for, say, 5-6pm (when a large portion of people get out of and home from work) during late March for the years 2005-2008. If their software doesn't know to account for two different DST rules, then two of those years will be comparing the wrong hour of the day. And, FWIW, I chose this example specifically because it lends itself much more to local time than to UTC.

    So, to patch this correctly, Windows will need to know which set of [at least two] DST rules to use (based on the year) when translating ANY time from 'system' (i.e. UTC) to 'local'. I don't see that happening, so I don't think that even the XP and Vista users will have a working OS, at least in the sense of correct time translation from UTC to local in the USA.

  • Oh dear. (Score:5, Funny)

    by Rob T Firefly (844560) on Thursday January 11 2007, @03:22PM (#17562292) Homepage Journal
    I used Windows to control all my time-related issues once. But after one BSOD all of a sudden it was 1955, my parents accidentally never met, and my future mom started hitting on me. Ugh...
  • by HappyDrgn (142428) on Thursday January 11 2007, @04:45PM (#17563998) Homepage
    Microsoft has always had a supported way of making your own changes to your timezone settings. It comes in a program called tzedit.exe and has existed since windows 95 at least. This requires no downloads from third parties. Here's the instructions (taken from: http://www.dbaplace.com/2007-dst-change/#comments [dbaplace.com])
    Every version of Windows has a "resource kit", though Microsoft only supports Win98+ so you may need to hit old download sites for those ancient versions of Windows. You can download the resource kit from http://www.microsoft.com/windows/reskits/ [microsoft.com]. Download this if you do not have it already.

    Once the resource kit is downloaded and installed search your disk drive for tzedit.exe and run it.

    Select your timezone from the list and click edit.

    You'll have two boxes "Start Day" and "End Day" change these from what they are to what they need to be for the new change.

    Click Ok, then Close.

    To make the settings take effect restart, or select Date/Time from the control panel, choose a different timezone, save and close then repeat selecting your correct timezone this time.
    • Re: (Score:3, Insightful)

      Ford aint giving garantee for their 2000 models cars either.

      And Ford doesn't get my business either. 10 year / 100,000 miles. Thank you Kia and Suzuki.

      And a big middle finger to Microsoft for this move.

      • Re: (Score:3, Insightful)

        Thank you Kia and Suzuki.

        Warranty - and safety - are also the reasons I went with a Kia Sportage. Manufacturer support counts for a lot, the sense that they will stand behind their product. That's also why I've been an OSX user for the last few years. Microsoft would have to make huge changes for me to go back. Apple simply does a better job. There's a bonus, too; old Windows machines make great linux-based servers. :)

      • Re:Hm... (Score:4, Insightful)

        by breser (16790) on Thursday January 11 2007, @02:52PM (#17561568) Homepage
        Nope, more like the US decided to switch to metric and people complaining that Ford won't replace their English unit speedometer with one that has more prominent markings for metric. In both cases, the product still works but external factors make it less convenient. With Ford you have to look at the smaller metric markings. With Microsoft, you have to manually update the clock for daylight savings time twice a year. Neither case is a malfunction.
    • Re:GMT (Score:5, Funny)

      by eln (21727) on Thursday January 11 2007, @02:42PM (#17561316) Homepage
      I have all my clocks set to Metric Time.

      Remember this moment, people: 80 past 2 on April 47th, the moment Microsoft finally kicked Windows 2000 to the curb.
      • If someone has problems with your metric "80 past 2 on April 47th", I provide English date format
        "3 piglets, 1/16 of stone and a horn after Matins, on 3 Sunday after Xmas"
      • Daylight Savings Time was originally sold as a method to allow children to travel to school in the safety of daylight. There is not much you can do about that during the Fall and Winter months when the day is so short, but you can adjust the clocks to help children during the Spring and Summer months.

        It had nothing to do with energy until...well, that's another topic.

        • Re: (Score:3, Interesting)

          Uh, you have that backwards. Daylight savings time was developed during wartime to conserve on energy by moving the daylight back towards the end of the day (people liked getting up late and staying up past dark back then too). So you might be thinking to yourself, that sounds great, why don't we do that all year long? The answer is the kids. We turn daylight savings time off in the winter because otherwise the kids have to go to school in the dark when the days grow short.

          Think about it, most kids go
    • by gstoddart (321705) on Thursday January 11 2007, @03:10PM (#17562002) Homepage
      News to me. Got links or references to share on that? If it hadn't been for this story, I'd have not known about that, thanks.

      Well, it was passed into law in August of 2005, so it's been around for a while. Here's a link [nist.gov] to the relevant bits. Following is the relevant changes:

      * In 2006, DST will begin at 2 a.m. on the first Sunday of April (April 2, 2006) and Standard Time will begin at 2 a.m. on the last Sunday in October (October 29, 2006), as under the current rules.

              * However, beginning in 2007, DST will begin at 2 a.m. on the second Sunday in March (March 11, 2007) and Standard Time will begin at 2 a.m. on the first Sunday in November (November 4, 2007).


      It actually got quite a bit of news coverage at the time. It's been on Slashdot several times [google.com] as well.

      Cheers

    • Yes, but if you aren't going to respect the Microsoft license and you are going to trust random programs you download, why stop there? Just download a cracked XP or Vista...
    • by smbarbour (893880) on Thursday January 11 2007, @06:11PM (#17565412)
      It is for anyone on a Windows network with mixed 2000 and XP installs using Active Directory. Kerberos (which Active Directory uses) will automatically deny access if the client's clock is more than 5 minutes off from the server's clock. If your server runs 2003 and your clients are 2000, or your server runs 2000 and your clients are XP, you will hit a problem.

      There is a reason why every system clock in an Active Directory system is synchronized. If the server's clock is off from Atomic time, so will all of the clients.
    • Re: (Score:3, Insightful)

      Apparently, glibc handles DST using some data files that describe the time changes depending on the time zone you select. They are usually located at /usr/share/zoneinfo, and they are also usually provided by a package. In my Slackware system, the package that provides, essentially, those data files is called glibc-zoneinfo. A quick search on packages.ubuntu.com reveals that the equivalent Ubuntu package, for example, is tzdata [ubuntu.com]. So I would say that a simple update in the relevant data files and packages sho