This article describes how to manually update the time zone definition in Windows SharePoint Services 3.0 and in Microsoft Windows SharePoint Services 2.0 for the Baghdad time zone change that is effective in April 2008. To do this, you must modify the Timezone.xml file. Windows SharePoint Services uses the Timezone.xml file to store time zone information and date and time information.

How to modify the Timezone.xml file to modify daylight saving time for Iraq's Baghdad (Arabic) time zone

To modify the Timezone.xml file to include the correct date and time for standard time and for daylight saving time (DST), follow these steps:

1. Click Start, click Run, type notepad in the Open box, and then click OK.
2. Open the Timezone.xml file.
   
   The Timezone.xml file is located in the following directory:
   Windows SharePoint Services 3.0

   <DriveLetter>:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\Config

   Windows SharePoint Services 2.0

   <DriveLetter>:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\60\Config
3. Locate the (GMT+03:00) Baghdad time zone.
   
   The contents of the Timezone.xml file should resemble the following.

        <TimeZone ID="26" Name="(GMT+03:00) Baghdad" Hidden="FALSE">
           <Bias>-180</Bias>
           <StandardTime>
               <Bias>0</Bias>
               <Date>
                   <Month>10</Month>
                   <Day>1</Day>
                   <Hour>4</Hour>
               </Date>
           </StandardTime>
           <DaylightTime>
               <Bias>-60</Bias>
               <Date>
                   <Month>4</Month>
                   <Day>1</Day>
                   <Hour>3</Hour>
               </Date>
           </DaylightTime>
        </TimeZone>
   

4. Replace the whole <TimeZone> tag section with the following.

          <TimeZone ID="26" Name="(GMT+03:00) Baghdad" Hidden="FALSE">
           <Bias>-180</Bias>
           <StandardTime>
               <Bias>0</Bias>
               <Date>
                   <Month>10</Month>
                   <Day>1</Day>
                   <Hour>2</Hour>
               </Date>
           </StandardTime>
           <DaylightTime>
               <Bias>-60</Bias>
               <Date>
                   <Month>10</Month>
                   <Day>1</Day>
                   <Hour>0</Hour>
               </Date>
           </DaylightTime>
           <History Year="2007" Name="Iraq2008">
             <Bias>-180</Bias>
              <StandardTime>
                 <Bias>0</Bias>
                 <Date>
                    <Month>10</Month>
                    <Day>1</Day>
                    <Hour>4</Hour>
                 </Date>
              </StandardTime>
              <DaylightTime>
                 <Bias>-60</Bias>
                 <Date>
                    <Month>4</Month>
                    <Day>1</Day>
                    <Hour>3</Hour>
                 </Date>
              </DaylightTime>
          </History>
       </TimeZone>
   

5. On the File menu, click Save.
   
   Note If you install a Windows SharePoint Services software update that includes a version of the Timezone.xml file, your modified version of the Timezone.xml file will be overwritten by the Windows SharePoint Services software update. To prevent your version of the Timezone.xml file from being overwritten, we recommend that you back up the Timezone.xml file. By doing this, you can restore your modified version of the Timezone.xml file to the server.
6. Restart Internet Information Services (IIS). To do this, click Start, click Run, type iisreset in the Open box, and then click OK.
7. Existing items that have date and time values that fall between 3:00 A.M. April 6, 2008, and midnight October 5, 2008, will now be off by one hour.
   
   Additionally, existing items that have date and time values that fall between 2:00 A.M. October 5, 2008, and 4:00 A.M. October 5, 2008, will be off by one hour.
   
   To fix these values, run the TZMOVE command by using Iraq2008 as the value for the -name parameter as described in the following Microsoft Knowledge Base articles.

   Windows SharePoint Services 3.0

   For more information, click the following article number to view the article in the Microsoft Knowledge Base:
   939809  (http://kbalertz.com/Feedback.aspx?kbNumber=939809/ ) Description of the update that addresses the issue in Windows SharePoint Services 3.0 in which items that use the Date and Time fields are off by one hour
   Important The TZMOVE command requires either Windows SharePoint Services 3.0 Service Pack 1 (SP1) or hotfix 941422. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
   941422   (http://kbalertz.com/Feedback.aspx?kbNumber=941422/ ) Description of the Windows SharePoint Services 3.0 post-Service Pack 1 hotfix package: January 31, 2008

   Windows SharePoint Services 2.0

   For more information, click the following article number to view the article in the Microsoft Knowledge Base:
   939770  (http://kbalertz.com/Feedback.aspx?kbNumber=939770/ ) Description of the update that addresses the issue in Windows SharePoint Services 2.0 in which items that use the Date and Time fields are off by one hour
   Important The TZMOVE command requires one of the following:
   • Microsoft Windows SharePoint Services 2.0 Service Pack 2 (SP2) and hotfix 941412.
   • Microsoft Windows SharePoint Services 2.0 Service Pack 3 (SP3) and hotfix 941412.
   For more information, click the following article number to view the article in the Microsoft Knowledge Base:
   941412  (http://kbalertz.com/Feedback.aspx?kbNumber=941412/ ) Description of the Windows SharePoint Services 2.0 post-Service Pack 3 hotfix package: January 25, 2008
   Note In Windows SharePoint Services 2.0, date and time values that occur in the past and that have shifted between daylight saving time and standard time because of the time zone change will be offset by one hour as soon as the time zone change are applied.
   
   The TZMOVE command may adjust an all-day event so that it includes an additional day. For example, an all-day event that begins at midnight on April 18 and that ends the same day at 11:59 P.M. may be adjusted to start at 1:00 A.M. on April 18 and end at 12:59 A.M. on April 19. Additionally, a Meetings Workspace that is linked to an all-day event may show duplicate links in its date selector.
   
   For recurring calendar items that have a start date before 3:00 A.M. April 6, 2008, and a recurrence exception between 3:00 A.M. April 6, 2008, and midnight October 5, 2008, the recurrence exceptions will appear to have been removed after you modify the Timezone.xml file. However, after you run the TZMOVE command by using the Iraq2008 parameter, the recurrence exceptions will appear at the correct time.
8. Before moving to the next step, find existing items that have date and time values that fall between midnight October 5, 2008, and 2:00 A.M. October 5, 2008. These items must be fixed manually in step 15.
9. Click Start, click Run, type notepad in the Open box, and then click OK.
10. Open the Timezone.xml file.
11. Locate the (GMT+03:00) Baghdad time zone.
12. Replace the whole <TimeZone> tag section with the following.

         <TimeZone ID="26" Name="(GMT+03:00) Baghdad" Hidden="FALSE">
            <Bias>-180</Bias>
            <DaylightTime>
               <Bias>-60</Bias>
            </DaylightTime>
            <History Year="2007" Name="Iraq2008">
              <Bias>-180</Bias>
               <StandardTime>
                  <Bias>0</Bias>
                  <Date>
                     <Month>10</Month>
                     <Day>1</Day>
                     <Hour>4</Hour>
                  </Date>
               </StandardTime>
               <DaylightTime>
                  <Bias>-60</Bias>
                  <Date>
                     <Month>4</Month>
                     <Day>1</Day>
                     <Hour>3</Hour>
                  </Date>
               </DaylightTime>
           </History>
         </TimeZone>
    

13. On the File menu, click Save.
    
    Note If you install a Windows SharePoint Services software update that includes a version of the Timezone.xml file, your modified version of the Timezone.xml file will be overwritten by the Windows SharePoint Services software update. To prevent your version of the Timezone.xml file from being overwritten, we recommend that you back up the Timezone.xml file. By doing this, you can restore your modified version of the Timezone.xml file to the server.
14. Restart Internet Information Services (IIS). To do this, click Start, click Run, type iisreset in the Open box, and then click OK.
15. Existing items that have date and time values that fall between midnight October 5, 2008, and 2:00 A.M. October 5, 2008, will now be off by one hour. These items were identified in step 8. Additionally, these values must be corrected manually.