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Q241040: Daylight Saving Time Change Not Applied Immediately

Article: Q241040
Product(s): Microsoft Windows NT
Version(s): winnt:4.0,4.0 SP4,4.0 SP5
Operating System(s): 
Keyword(s): kbWinNT4sp6fix kbgraphxlinkcritical
Last Modified: 16-MAY-2002

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The information in this article applies to:

- Microsoft Windows NT Workstation versions 4.0 SP4, 4.0 SP5 
- Microsoft Windows NT Server versions 4.0 SP4, 4.0 SP5 
- Microsoft Windows NT Server version 4.0, Terminal Server Edition 
- Microsoft Windows NT Server, Enterprise Edition version 4.0 
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SYMPTOMS
========

When you are running Windows NT 4.0 Service Pack 4 (SP4) or Service Pack 5 (SP5)
on some multiple-processor computers, Daylight Saving Time changes may not be
applied for three or more hours, or until the next time you restart the
computer.

Note that this behavior is not specific to any one multiple-processor computer
manufacturer. It may occur on any multiple-processor computer; Microsoft has not
tested every multiple-processor computer for this behavior.

RESOLUTION
==========

Windows NT Server or Workstation 4.0
------------------------------------

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the
individual software update. For information on obtaining the latest service
pack, please go to:

- http://www.microsoft.com/windows/servicepacks/

-or-

- Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

For information on obtaining the individual software update, contact Microsoft
Product Support Services. For a complete list of Microsoft Product Support
Services phone numbers and information on support costs, please go to the
following address on the World Wide Web:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

For your convenience, a supported software update that corrects this problem is
also available from Microsoft, but it has not been fully regression tested and
should be applied only to systems experiencing this specific problem. If you are
not severely affected by this specific problem, Microsoft recommends that you
install the latest Windows NT service pack that contains this software update.

If you are running Windows NT 4.0 Service Pack 6:

The Microsoft BIOS3 Y2K Update is installed as part of Windows NT 4.0 Service
Pack 6.

If you are running Windows NT 4.0 Service Pack 4 or 5:

The following files are available for download from the Microsoft Download Center
or Microsoft's FTP site. Click the file names below to download the appropriate
file:

  x86:

  Microsoft Download Center: DownloadDownload Biosfixi.exe now
  (http://download.microsoft.com/download/winntsrv40/Update/3/NT4/EN-US/Biosfixi.exe)

  FTP: DownloadDownload Biosfixi.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/NT40/hotfixes-postSP5/Y2K/BIOS3-fix/Biosfixi.exe)

  Alpha:

  Microsoft Download Center: DownloadDownload Biosfixa.exe now
  (http://download.microsoft.com/download/winntsrv40/Update/3/ALPHA/EN-US/Biosfixa.exe)

  FTP: DownloadDownload Biosfixa.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/NT40/hotfixes-postSP5/Y2K/BIOS3-fix/Biosfixa.exe)

For additional information about how to download Microsoft Support files, click
the article number below to view the article in the Microsoft Knowledge Base:

  Q119591 How to Obtain Microsoft Support Files from Online Services

Microsoft used the most current virus detection software available on the date of
posting to scan this file for viruses. After it is posted, the file is housed on
secure servers that prevent any unauthorized changes to the file.


WINDOWS NT SERVER 4.0, TERMINAL SERVER EDITION

To resolve this problem, obtain the latest service pack for Windows NT Server
version 4.0, Terminal Server Edition. For additional information, please see the
following article in the Microsoft Knowledge Base:

  Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack


STATUS
======

WINDOWS NT 4.0

Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article. This problem was first corrected in
Windows NT 4.0 Service Pack 6.

WINDOWS NT SERVER 4.0, TERMINAL SERVER EDITION

Microsoft has confirmed this to be a problem in Windows NT Server 4.0, Terminal
Server Edition. This problem was first corrected in Windows NT Server version
4.0, Terminal Server Edition Service Pack 6.


MORE INFORMATION
================

For additional information on other fixes included in the Microsoft BIOS3 Y2K
Update, click the article number below to view the article in the Microsoft
Knowledge Base:

  Q216913 BIOS Date Value Does Not Immediately Update on January 1, 2000

Additional query words: savings

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Keywords          : kbWinNT4sp6fix kbgraphxlinkcritical 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400search kbWinNT400search kbWinNTW400sp5 kbWinNTW400sp4 kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400sp5 kbWinNTS400sp4 kbWinNTS400search kbNTTermServ400 kbNTTermServSearch
Version           : winnt:4.0,4.0 SP4,4.0 SP5
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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