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
Can the extraction mode of the Exchange Calendar update tool be scripted at all?
Q: Can the extraction mode of the Exchange Calendar update tool be scripted at all? Or will I have...
Author: atsim1 Date: 03/07/2007
I have three Exchange Organizations total in our three trusted forests. We use MIIS for Free/Busy replication. Two Forest are in Europe and one in the US. Will the European forests need to rebase?
Q: I have three Exchange Organizations total in our three trusted forests. We use MIIS for Free/Busy...
Author: atsim1 Date: 03/07/2007
Could we uncheck that 'automatically decline...' option instead of using /forcerebasesuppressallupdates on just res mailboxes?
Q: Could we uncheck that 'automatically decline...' option instead of using...
Author: atsim1 Date: 03/07/2007
What is the risk involved to single instance appointments if you select to let the exchange tool modify the appointments?
Q: What is the risk involved to single instance appointments if you select to let the exchange tool...
Author: atsim1 Date: 03/07/2007
My Exchange server is also a Domain Controller (DC), so I can't make the user account I am using to run msextmzdfg.exe a local administrator of the Exchange server. What can I do?
Q: My Exchange server is also a Domain Controller (DC), so I can't make the user account I am using...
Author: atsim1 Date: 03/07/2007
Regarding the nonexistent.txt file: what would happen if we specify the wrong time zone, will it mess up the appointments in the calendar?
Q: Regarding the nonexistent.txt file: what would happen if we specify the wrong time zone, will it...
Author: atsim1 Date: 03/07/2007
I have run the MsExTmzCfg.exe tool to extract info re: my mailboxes. 60% of my users are in the NonExistent.txt files. Wouldn't I want to rebase all of my users?
Q: I have run the MsExTmzCfg.exe tool to extract info re: my mailboxes. 60% of my users are in the...
Author: atsim1 Date: 03/07/2007
During the Time Zone Extraction Process using the Exchange Tool (msextmzcfg.exe) as part of the virtual machine provided by MS, it stops with "unable to extract the time zone information. please see log file: msextmz.log for more information". W
Q: During the Time Zone Extraction Process using the Exchange Tool (msextmzcfg.exe) as part of the...
Author: atsim1 Date: 03/07/2007
What should we do with users (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: 03/07/2007
If I don't run the Exchange Tool immediately after my clients have KB 931386 installed, will there be a problem with appts created during that "gap" period?
Q: If I don't run the Exchange Tool immediately after my clients have KB 931386 installed, will...
Author: atsim1 Date: 03/07/2007
While I know I should apply the DST updates to all Exchange servers, do I need to run the rebasing tool against all Exchange server or just where DST changes?
Q: I have several Exchange servers around the world. While I know I should apply the DST updates to...
Author: atsim1 Date: 03/07/2007
To Run the Exchange Calendar update tool from one workstation: do I need to have separate runs for each timezone, such as one for Eastern, one for Central , one for Pacific changing the Admin Workstation to that time zone each time ?
Q: To Run the Exchange Calendar update tool from one workstation: do I need to have separate runs...
Author: atsim1 Date: 03/07/2007
Can I run one batch file with one Mailbox_1.txt since the Time Zone for each user is set in the Mailbox_1.txt ?
Q: Running the Exchange Calendar update tool from one Admin Workstation where users in multiple...
Author: atsim1 Date: 03/07/2007
How do you ensure that Public folder Calendars under Exchange get updated to the correct time?
Q: How do you ensure that Public folder Calendars under Exchange get updated to the correct time?A:...
Author: atsim1 Date: 03/07/2007
What should be the order for patcing CDO patches?
Q: I have a front end exchange server 2000 and backend exchange 2003 sp1. What should be the order...
Author: atsim1 Date: 03/07/2007
Can I run the Exchange Calendar update tool from an install of Windows Server 2003?
Q: Can I run the Exchange Calendar update tool from an install of Windows Server 2003? Are there any...
Author: atsim1 Date: 03/07/2007
Where can I find instructions on updating public folders?
Q: Where can I find instructions on updating public folders?A: Refer KB...
Author: atsim1 Date: 03/07/2007
I work with mixed environments, and we have been trying to put together a definitive plan for updating out clients. We thought we had one and then microsoft aired its DST webinar yesterday and now we are uncertain about the order to apply the updates
Q: I work with mixed environments, and we have been trying to put together a definitive plan for...
Author: atsim1 Date: 03/07/2007
Is there a problem with running /FORCEREBASESUPPRESSALLUPDATES against all mailboxes?
Q: Is there a problem with running /FORCEREBASESUPPRESSALLUPDATES against all mailboxes? I need to...
Author: atsim1 Date: 03/07/2007
I have received a CDO patch file for our exchange 2000 from our partner. I see an article written for exchange 2003 CDO patches. Where can I find the accompanying article for exchange 2000 CDO patch?
Q: I have received a CDO patch file for our exchange 2000 from our partner. I see an article written...
Author: atsim1 Date: 03/07/2007
When I run the MSEXTMZCFG.exe tool (KB 930879) on an Exchange 2000 server, I am seeing a lot of 0x80004005 error messages. How do I fix this?
Q: When I run the MSEXTMZCFG.exe tool (KB 930879) on an Exchange 2000 server, I am seeing a lot of...
Author: atsim1 Date: 03/07/2007
Most of my clients are seriously confused by the rebase tool logs. It is reporting 0x80004005 when running discoveries and updates practically on every mailbox, yet we are sure that service account we are using is permission as required. Thoughts?
Q: Most of my clients are seriously confused by the rebase tool logs. It is reporting 0x80004005...
Author: atsim1 Date: 03/07/2007
When I run msextmz.exe, the msextmz.log has entries for mailboxes: Unable find mailbox timezone:Error 0x80004005. Can you tell me what this means and how to resolve it?
Q: When I run msextmz.exe, the msextmz.log has entries for mailboxes: Unable find mailbox...
Author: atsim1 Date: 03/07/2007
/FORCEREBASESUPPRESSALLUPDATES - If this switch is run - this will update the calendars of the attendees without sending notification, correct?
Q: /FORCEREBASESUPPRESSALLUPDATES - If this switch is run - this will update the calendars of the...
Author: atsim1 Date: 03/07/2007
What is the command syntax for tzmove on a mailbox using the /FORCEREBASESUPPRESSALLUPDATES?
Q: What is the command syntax for tzmove on a mailbox using the /FORCEREBASESUPPRESSALLUPDATES?A:...
Author: atsim1 Date: 03/07/2007
Regarding /FORCEREBASESUPPRESSALLUPDATES, should this be run against ALL mailboxes (user and resource) or is it recommended only against resource mailboxes?
Q: Regarding /FORCEREBASESUPPRESSALLUPDATES, should this be run against ALL mailboxes (user and...
Author: atsim1 Date: 03/07/2007
When I ran the exchange tool, I see in Time Zone update Log file, the old time and the new time hours are off by 5 hours, but on the user outlook, the changes are correct. What would cause that?
Q: When I ran the exchange tool, I see in Time Zone update Log file, the old time and the new time...
Author: atsim1 Date: 03/07/2007
Does the Exchange CDO patch need to be installed to 'correct' any new meetings for OWA?
Q: When we view our calendars in OWA, all appointments look fine right now. Presently, we have only...
Author: atsim1 Date: 03/07/2007
We have decided to run the outlook tool on a handful of clients that utilize the calendar in outlook vs. the rebase tool on exchange.
Q: We have decided to run the outlook tool on a handful of clients that utilize the calendar in...
Author: atsim1 Date: 03/07/2007
What does the tzmove.exe program do to appointments when it rebases calendar appointments?
Q: I have been able to export user time zone data. What does the tzmove.exe program do to...
Author: atsim1 Date: 03/07/2007
I am setting up the Exchange Update tool and the admin profile to run the tool - this must be run in online mode - can you elaborate?
Q: I am setting up the Exchange Update tool and the admin profile to run the tool - this must be run...
Author: atsim1 Date: 03/07/2007
I'm getting Unable Open mailbox - 0x8004011D when I run the MSExTmz_1.bat created when I ran the MsExTmzCfg.exe - any ideas on how I get the permissions need to run this?
Q: I'm getting Unable Open mailbox - 0x8004011D when I run the MSExTmz_1.bat created when I ran the...
Author: atsim1 Date: 03/07/2007
Is there a list of error messages for the Outlook Time Zone Data Update Tool?
Q: Is there a list of error messages for the Outlook Time Zone Data Update Tool?A: This KB has...
Author: atsim1 Date: 03/07/2007
Is there specific guidance for manually updating a recurring meeting during the extended DST period?
Q: Is there specific guidance for manually updating a recurring meeting during the extended DST...
Author: atsim1 Date: 03/07/2007
Can we change the time zone on the workstation to match the time zone of the resource mailbox and run the Outlook update tool?
Q: can we change the time zone on the workstation to match the time zone of the resource mailbox and...
Author: atsim1 Date: 03/07/2007
If we use a general workstation to run the Outlook update tool against several resource mailboxes, will the workstation time zone over-ride the mailbox time zone if the mailbox is located on another server in another time zone?
Q: if we use a general workstation to run the Outlook update tool against several resource...
Author: atsim1 Date: 03/07/2007
We ran the rebase tool on the machine and did not have the patch. We are patching the machine and going to re-run the rebase again. Can we suppress the emails being sent and will this fix the appointments without sending emails again?
Q: We ran the rebase tool on the machine and did not have the patch. We are patching the machine and...
Author: atsim1 Date: 03/07/2007
Should you rebase for resource calendars?
Q: Should you rebase for resource calendars?A: Yes, you normally would want to rebase resource...
Author: atsim1 Date: 03/07/2007
Can you stop the ability to send out meetings again or is this natural behavior with the Outlook tool?
Q: Can you stop the ability to send out meetings again or is this natural behavior with the Outlook...
Author: atsim1 Date: 03/07/2007
Where in the documentation does it state a resend of meeting requests?
Q: Where in the documentation does it state a resend of meeting requests? A:...
Author: atsim1 Date: 03/07/2007
I am trying to run the outlook client update tool through SMS. It is not working.
Q: I am trying to run the outlook client update tool through SMS. It is not working. When the actual...
Author: atsim1 Date: 03/07/2007
When you rebase does the process resend emails out for appointments to the users that are all recurring only?
Q: When you rebase does the process resend emails out for appointments to the users that are all...
Author: atsim1 Date: 03/07/2007
If a user creates a new recurring appointment after the OS is patched, but before the rebasing tool is run against the user's mailbox, and then I run the rebasing tool for recurring appointments, will that new recurring appointment be incorrectly adjusted?
Q: If a user creates a new recurring appointment after the OS is patched, but before the rebasing...
Author: atsim1 Date: 03/07/2007
We are trying to run the Outlook tzmove to our users through SMS but it looks like it isn't running in the correct user context. It there additional steps that we should take?
Q: We are trying to run the Outlook tzmove to our users through SMS but it looks like it isn't...
Author: atsim1 Date: 03/07/2007
Before running the msextmzcfg.exe, can i just take all the names listed on the errors.txt file and paste them into the output.exe file?
Q: Before running the msextmzcfg.exe, can i just take all the names listed on the errors.txt file...
Author: atsim1 Date: 03/07/2007
What version of Outlook do you need on the client workstation in order to run the Exchange Calendar tool?
Q: What version of Outlook do you need on the client workstation in order to run the Exchange...
Author: atsim1 Date: 03/07/2007
When updating public folders with Outlook tool in quiet mode, does it use the local workstation time zone for base time zone for all appointments?
Q: When updating public folders with Outlook tool in quiet mode, does it use the local workstation...
Author: atsim1 Date: 03/07/2007
What will go wrong if the Server OS is patched, Exchange Patch and Rebasing Tools are ran before workstations are patched?
Q: What will go wrong if the Server OS is patched, Exchange Patch and Rebasing Tools are ran before...
Author: atsim1 Date: 03/07/2007
MSEXTMZ – A guide to troubleshooting
MSEXTMZ – A guide to troubleshooting Overview MSEXTMZ.EXE is the tool which Exchange Administrators...
Author: atsim1 Date: 03/07/2007