SharePoint – DayLight Savings Issue – Quick Fix

Microsoft OS and WSS use their own Timing settings. Sometime ,when the daylight savings starts/End WSS time doesn’t get updated automatically as Windows. Last year 2008 it was a big issue with SharePoint and Microsoft had Patch for each time Zone to fix the issue. This year also Microsoft include several new time zone patch to Solve the issue.

If WSS have Service Pack 2 it should automatically update time on SharePoint Server side when the daylight savings starts/End. I was working on a Intranet Project where we had SP1 and Clients were not interested on upgrading SharePoint Server to SP2.

There is a easy fix to solve this particular issue by adjusting Simple XML change. Simply navigate to “C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\CONFIG” and edit “timezone.xml”. It is always better to save the original XML before editing as best practise.

 Following Example shows modified XML for NSW,Australia-2009. It is very much straight forward. Simply go through file until you find your particular time zone, then modify the values or Month Day Hour, just remember that Day is actually the week that it changes i.e. in this example DST starts in the first week of October this year in NSW.

<TimeZone ID=”76″ Name=”(GMT+10:00) Canberra, Melbourne, Sydney” Hidden=”FALSE”>

  <Bias>-600</Bias>

  <StandardTime>

    <Bias>0</Bias>

    <Date>

      <Month>4</Month>

      <Day>1</Day>

      <Hour>3</Hour>

    </Date>

  </StandardTime>

  <DaylightTime>

    <Bias>-60</Bias>

    <Date>

      <Month>10</Month>

      <Day>1</Day>

      <Hour>2</Hour>

    </Date>

  </DaylightTime>

</TimeZone>

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