DOCUMENT:Q180122
TITLE   :After Changing the Time, Windows NT May Skip a Day
PRODUCT :Microsoft Windows NT
PROD/VER:4.0
OPER/SYS:WINDOWS
KEYWORD :kbbug4.00 kbfix4.00 kb2000
--------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Windows NT Server version 4.0
 - Microsoft Windows NT Workstation version 4.0
 - Microsoft Windows NT Server, Enterprise Edition version 4.0
--------------------------------------------------------------------------

SYMPTOMS
========

After performing the following steps, Windows NT may skip a day:

1. In Control Panel, double-click Date/Time.

2. Set the time to 11:59:55 PM.

3. Set the date to anything (for example, July 1, 1998).

4. Click Apply.

5. Perform the following three actions in 5 seconds:

   a. Set the year to 1999.

   b. Set the month to 7.

   c. Set the day to 1.

6. Set the clock to 11:59:55 PM and then click Apply. After 5 seconds, the
   clock advances to 7/3/1999 rather than 7/2/1999.

RESOLUTION
==========

To resolve this problem, obtain the following fix or wait for the next
Windows NT service pack.

This fix should have the following time stamp:

   06/04/98  02:49p                53,520 Timedate.cpl (Intel)
   06/04/98  02:51p                89,360 Timedate.cpl (Alpha)

This hotfix has been posted to the following Internet location:

   ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/chp/NT40/
   hotfixes-postSP3/y2k-fix/

NOTE: The above link is one path; it has been wrapped for readability.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 4.0.
A supported fix is now available, but has not been fully regression tested
and should be applied only to systems experiencing this specific problem.
Unless you are severely impacted by this specific problem, Microsoft
recommends that you wait for the next Service Pack that contains this fix.
Contact Microsoft Technical Support for more information.

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

For more information on what is fixed in Y2K-fix, please see the following
articles in the Microsoft Knowledge Base:

   ARTICLE-ID: Q175093
   TITLE     : User Manager Does Not Recognize February 2000 As a Leap Year

   ARTICLE-ID: Q183123
   TITLE     : Find Files Displays Garbled Date if Year is 2000 or Greater

   ARTICLE-ID: Q180125
   TITLE     : Shell Doc Property Dialog Custom Date Incorrect After Year 2000

Additional query words: 4.00 y2k year 2000

============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.