Microsoft Daylight Saving Time & Time Zone Blog
This is the blog maintained by staff at Microsoft to provide general information, announcements and provide answers to Frequently Asked Questions (FAQs) related to daylight saving time (DST) and time zone (TZ) changes around the world.* Important Notice
How can I check to see if the patch I installed is going to work correctly for Windows XP?
Q: How can I check to see if the patch I installed is going to work correctly for Windows XP. I...
Author: atsim1 Date: 03/07/2007
Do you have any patches for Windows Server 2000 running Exchange 2000?
Q: Do you have any patches for Windows Server 2000 running Exchange 2000? Do you have the procedure...
Author: atsim1 Date: 03/07/2007
Since the TZmove.exe looks for the HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstall key. How does it know when the system was patched for windows 2000 machines?
Q: Since the TZmove.exe looks for the...
Author: atsim1 Date: 03/07/2007
How do I accomplish running the patches via WSUS?
Q: I understand there is a specific order of applying all patches, First OS patch 931836, then to...
Author: atsim1 Date: 03/07/2007
On Exchange 2000, can I just run the Outlook patch on each client without running the Exchange tool?
Q: I have a question regarding DST for an Exchange 2000 environment with Outlook client on 2000...
Author: atsim1 Date: 03/07/2007
When installing KB 931836, I get a message that says “update cannot be installed because a newer or same time zone update has already been installed.” Is this okay?
Q: when installing the OS updates in KB 931836, I get a message that says “update cannot be...
Author: atsim1 Date: 03/07/2007
When you use exchange tool on Exchange 2000, when should OS of the exchange server be patched for DST?
Q: When you use exchange tool on Exchnage 2000, when should OS of the exchange server be patched for...
Author: atsim1 Date: 03/07/2007
In what ways can a customer leverage WSUS for anything with these OS updates?
Q: IN what ways can a customer leverage WSUS for anything with these OS updates?A: WSUS can only be...
Author: atsim1 Date: 03/07/2007
Should I apply DST patches to all servers that will not be affected by DST?
Q: I have servers in different parts of Latin America, should I apply DST patches to all servers...
Author: atsim1 Date: 03/07/2007
What are the patches for windows 2000 pro and 2000 server?
Q: what are the patches for windows 2000 pro and 2000 server both with sp4A: There is a patch...
Author: atsim1 Date: 03/07/2007
I have 2 Exchange servers, front-end OWA w/ no mailboxes and back-end w/ mailboxes... do I apply the 4K patch for 2000 Exchange to both?
Q:I have 2 Exchange servers, front-end OWA w/ no mailboxes and back-end w/ mailboxes... do I apply...
Author: atsim1 Date: 03/07/2007
How do you determine if the appointments are off before the rebase and how do you determine if they are right after the rebase?
Q: If your workstation has been patched and you have appointments past March 10th. How do you...
Author: atsim1 Date: 03/07/2007
Can you call Support for help even though you do not have a support contract?
Q: If there any issues with the DST changes, can you call Support for help even though you do not...
Author: atsim1 Date: 03/07/2007
Our organization is only going to patch server OS's. Is there a problem with workstations running an hour behind during the delta period?
Q: My organization has decided to patch our server OS only for the DST changes. We will patch...
Author: atsim1 Date: 03/07/2007
Do the DST updates apply to North America only?
Q: The DST updates applied to North America only or worldwide, for example if I have a server in...
Author: atsim1 Date: 03/07/2007
We have updated all systems with regards to KBs 931836, 926666, and 924881, anything else?
Q: We have updated all systems with the various DST 2007 updates corresponding to KB 931836, 926666,...
Author: atsim1 Date: 03/07/2007
What is the best (most accurate) way to deploy the Daylight Saving Time updates and patches?
Q: What is the best (most accurate) way to deploy the Daylight Saving Time updates and patches? What...
Author: atsim1 Date: 03/07/2007
Is there a web page that we could use for end user DST communication?
Q: Is there a web page that we could use for end user DST communication? I am looking for a brief...
Author: atsim1 Date: 03/07/2007
What is the “extended DST period” I keep hearing about?
Q: What is the “extended DST period” I keep hearing about?A: The extended DST period are the four...
Author: atsim1 Date: 03/07/2007
Where can I find the technical chat sessions for general Microsoft product queries?
Q: Where can I find the technical chat sessions for general Microsoft product queries?A: I suggest...
Author: atsim1 Date: 03/07/2007
Why did you change the DST 2007 website on Microsoft.com?
Q: Why did you change the DST 2007 website on Microsoft.com?A: The website is constantly being...
Author: atsim1 Date: 03/07/2007
FYI on Outlook tool error: "The installation of this package failed"
Q: What should I do when I receive the Outlook tool (TZDUT) error: "The installation of this package...
Author: atsim1 Date: 03/07/2007
Missing entries for specific time zones in the registry
Q: My machines are missing entries for specific time zones from the registry. What do I do? A: When...
Author: atsim1 Date: 03/06/2007
How do I run the FORCEREBASESUPPRESSALLUPDATES switch for a bulk set of mailboxes?
Q: I would like to run the FORCEREBASESUPPRESSALLUPDATES switch for a bulk set of mailboxes. I'm...
Author: atsim1 Date: 03/06/2007
I receive an error trying to process a mailbox (0x8007000E)
Q: When checking the msextmz.log file, the rebase works and then I receive an error. I get an error...
Author: atsim1 Date: 03/06/2007
Where can I go to get consumer guidance on daylight saving time changes?
Q: Where can I get more information from Microsoft on the changes and updates for my computer,...
Author: atsim1 Date: 03/05/2007
DST 2007: Unable find mailbox timezone:Error 0x80004005
DST 2007: Unable find mailbox timezone:Error 0x80004005 This article deals with understanding and...
Author: atsim1 Date: 03/05/2007
Where can I get instructions for updating an Exchange 2003 cluster with the CDO patch?
Q: Can you tell me or point me to a document for updating an exchnage 2003 cluster with the CDO...
Author: atsim1 Date: 03/02/2007
When running Exchange rebasing tool, we are getting lots of 0x80004005 errors. What is causing this?
Q: when running Exchange rebasing tool, we are getting lots of 0x80004005 errors. what is causing...
Author: atsim1 Date: 03/02/2007
Is there a DST 2007 update for Microsoft CRM?
Q: I was under the impression that there would be a DST 2007 update for Microsoft CRM that would...
Author: atsim1 Date: 03/02/2007
My workstations were patched with 931386 10 days ago, my Exchange servers have 931386, but not 926666, can I use the Exchange Server tool or do I have to have my users run the Outlook update tool?
Q:My workstations were patched with 931386 10 days ago, my Exchange servers have 931386, but not...
Author: atsim1 Date: 03/02/2007
What should we do with mailboxes that are in the NonExistent text file from the Time Zone Extraction process?
Q:what should we do with users (mailboxes) that are in the NonExistent text file from the Time Zone...
Author: atsim1 Date: 03/02/2007
Do I need a patch for Dynamics CRM or will patching Exchange/Outlook be adequate?
Q: Do I need a patch for Dynamics CRM or will patching Exchange/Outlook be adequate?A: Yes. For...
Author: atsim1 Date: 03/01/2007
If I just rebase meetings manually would it be just be that Outlook Webacess that would not be fixed?
Q: OK...So if I just rebase meetings manually would it be just be that Outlook Webacess that would...
Author: atsim1 Date: 03/01/2007
We found that some "1 day" events now span 2 days. Some are single instance and some are recurring. How can we fix this?
Q: We performed the rebasing on our Exchange 2003 server. We found that some "1 day" events now span...
Author: atsim1 Date: 03/01/2007
I heard there is a new Auto Accept Agent will release next week, is true?
Q: I heard there is a new Auto Accept Agent will release next week, is true?A: The Auto Accept Agent...
Author: atsim1 Date: 03/01/2007
What is best way to allow conflict in the rebase period?
Q: My question is resource mailbox update. We have 4000+ more resource mailboxes and all of them on...
Author: atsim1 Date: 03/01/2007
I'd like to know if have different version of KB926666 for Exchange Cluster patch.
Q: I'd like to know if have different version of KB926666 for Exchange Cluster patch. A: No, there...
Author: atsim1 Date: 03/01/2007
My LegacyExchangeDN name is correct for the "Server Domain Name" field in the tool. Should I enter it differently?
Q: My LegacyExchangeDN name is correct for the "Server Domain Name" field in the tool. I saw some...
Author: atsim1 Date: 03/01/2007
At the initial screen I get "Unable to retrieve the server distinguished name".
Q: I am using ver 2 of the Exchange DST tool. At the initial screen I get "Unable to retrieve the...
Author: atsim1 Date: 03/01/2007
What is version 3 of the Exchange tool that people have been talking about?
Q: What is version 3 of the Exchange tool that people have been talking about? A: The "v3 of the...
Author: atsim1 Date: 03/01/2007
When the Exchange tool runs against mailboxes, does it check all calendar folders in the mailbox, or just the default calendars?
Q: When the Exchange tool runs against mailboxes, does it check all calendar folders in the mailbox,...
Author: atsim1 Date: 03/01/2007
All the docs say to run the Outlook tool against the public folder. Is that right?
Q: Still confused, all the docs say to run the OUTLOOK tool against the public folders, not the...
Author: atsim1 Date: 03/01/2007
All users on my servers are in California. Should I set them to GMT-8:00 Pacific?
Q: All users on one of the servers are in California, when running the MSEXTMZCFG (v2), I get...
Author: atsim1 Date: 03/01/2007
Can the Exchange calendar rebasing tool be run to update appointments on public folder calendars?
Q: Can the Exchange calendar rebasing tool be run to update appointments on public folder calendars?...
Author: atsim1 Date: 03/01/2007
So we don't need to run the tool against any public calendar?
Q: ok, so meetings on public calendars set to use AAA will get rebased when the tool is run against...
Author: atsim1 Date: 03/01/2007
How can I set a users time zone information for them?
Q: I ran the MSEXTMZCFG.exe file yesterday and ended up with about 25% of my users in the...
Author: atsim1 Date: 03/01/2007
Does the machine have to be in the domain to run the tool or can I just run it with domain privileges?
Q: Can I run the Exchange Tool from a machine in a workgroup, and just "run as" the tool using a...
Author: atsim1 Date: 03/01/2007
Is there any way to roll back changes made by the Exchange Tool if it somehow it incorrectly updates someone's calendar items?
Q: Is there any way to roll back changes made by the Exchange Tool if it somehow it incorrectly...
Author: atsim1 Date: 03/01/2007