Update – Exchange Server meetings in Russian time zones as well as names of time zones may be incorrect after October 26, 2014

After October 26, 2014, Exchange Server some users who are in Russian time zones may see meeting times incorrect Time Zone-display names may be outdated in OWA.

Microsoft released an update (KB 2998527) for Windows on September 23, 2014 to address this change and it should be installed on the end user PC’s and Servers since exchange and outlook relies on windows for the time zone information.

How to obtain this update

The following files are available for download from the Microsoft Download Center.

Update for Windows Server 2012 R2 (KB2998527)

Update for Windows Server 2012 (KB2998527)

Update for Windows 8.1 for x64-based systems (KB2998527)

Update for Windows 8.1 for x32-based systems (KB2998527)

Update for Windows 8 for x64-based systems (KB2998527)

Update for Windows 8 for x32-based systems (KB2998527)

Update for Windows Server 2008 R2 for x64-based systems (KB2998527)

Update for Windows Server 2008 R2 for Itanium-based systems (KB2998527)

Update for Windows 7 for x64-based systems (KB2998527)

Update for Windows 7 for x32-based systems (KB2998527)

Update for Windows Embedded Standard 7 for x64-based systems (KB2998527)

Update for Windows Embedded Standard 7 for x32-based systems (KB2998527)

Update for Windows Server 2008 for x64-based systems (KB2998527)

Update for Windows Server 2008 for x32-based systems (KB2998527)

Update for Windows Server 2008 for Itanium-based systems (KB2998527)

Update for Windows Vista for x64-based systems (KB2998527)

Update for Windows Vista for x32-based systems (KB2998527)

Update for Windows Server 2003 for x64-based systems (KB2998527)

Update for Windows Server 2003 for x32-based systems (KB2998527)

Update for Windows Server 2003 for Itanium-based systems (KB2998527)


Things that we can troubleshoot for the affected reported user even if any issues reported from end users after the above update is applied

1) Restart the affected user’s PC and see the results.

2) login to owa for the affected user and see the time zone whether it is set to UTC+4 as below



3) If it is set to different time zone then correct the value to UTC + 4 as above

Check the affected user date and time settings in his PC and it should reflect as UTC + 3 as below which is Russian Time Zone


4) Also run the below command to check to ensure that the affected user Time Zone is in Russian Standard Time

Get-MailboxRegionalConfiguration “affecteduserid”




5) If you notice the user TimeZone is set to a different region then run the below command to change the user to Russian Standard Time

Set-MailboxRegionalConfiguration “affecteduserid” -TimeZone “russian standard time”

References – https://support.microsoft.com/kb/2998527?wa=wsignin1.0


Sathish Veerapandian

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