Daylight Saving Time Change Not Applied Immediately on Some Multiple-Processor Computers

ID: Q241040

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

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 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/

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://www.microsoft.com/support/supportnet/overview/overview.asp

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: Biosfixi.exe

FTP: Biosfixi.exe
Alpha:
Microsoft Download Center: Biosfixa.exe

FTP: Biosfixa.exe

For more information about how to download files from the Microsoft Download Center, please visit the Download Center at the following Web address

http://www.microsoft.com/downloads/search.asp

and then click How to use the Microsoft Download Center.

Windows NT Server 4.0, Terminal Server Edition

A supported software update that corrects this problem is now 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 wait for the next Windows NT Server 4.0, Terminal Server Edition service pack that contains this software update.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the software update. 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://www.microsoft.com/support/supportnet/overview/overview.asp

This software update has been posted to the following Internet location as Biosfixi.exe (x86) and Biosfixa.exe (Alpha):

ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/NT40tse/hotfixes-postSP4/Y2K/BIOS3-fix/

To determine if a localized version of this software update is available, change "USA" in the URL above to the appropriate localized abbreviation. Click here for a list of these abbreviations.

STATUS

Windows NT 4.0

Microsoft has confirmed this to be a problem in the Microsoft products 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.

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

Keywords : kbbug4.00 kbfix4.00 NT4SP6Fix
Version : winnt:4.0,4.0 SP4,4.0 SP5
Platform : winnt
Issue type : kbbug