Microsoft Windows Server | WI424872

Impact: Chilean government announced a Daylight Saving Time (DST) change for 2022. Originating KB URL: N/A Originating Build: N/A Resolved KB URL: https://support.microsoft.com/en-us/topic/5018411 Date Resolved: 2022-10-11T10:00:00-07:00 Vendor Message History: ======================= Published: 2022-10-22T01:19:08.717+00:00 ---------------------------------------- Starting at 12:00 a.m. Saturday, September 10, 2022, the official time in Chile will advance 60 minutes in accordance with the August 9, 2022 official announcement by Chilean government about a Daylight Saving Time (DST) time zone change. This moves the DST change which was previously September 4 to September 10. Symptoms if the workaround is not used on devices between September 4, 2022 and September 11, 2022: - Time shown in Windows and apps will not be correct. - Apps and cloud services which use date and time for integral functions, such as Microsoft Teams and Microsoft Outlook, notifications and scheduling of meetings might be 60 minutes off. - Automation using date and time, such as Scheduled tasks, might not run at the expected time. - Timestamp on transactions, files, and logs will be 60 minutes off. - Operations that rely on time-dependent protocols such as Kerberos might cause authentication failures when attempting to logon or access resources. - Windows devices and apps outside of Chile might also be affected if they are connecting to servers or devices in Chile or if they are scheduling or attending meetings taking place in Chile from another location or time zone. Windows devices outside of Chile should not use the workaround, as it would change their local time on the device. Workaround: This issue is now resolved in KB5018411 (https://support.microsoft.com/help/5018411) but you should undo the workaround, if it is still being used. You can mitigate this issue on devices in Chile by doing either of the following on September 4, 2022 and undoing on September 11, 2022: - Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to Off. - Go to Control Panel > Clock and Region > Date and Time > Change time zone and uncheck the option for “Automatically adjust clock for Daylight Saving Time”. To mitigate this issue in the Santiago time zone, after 12:00 a.m. on September 11, 2022, and for those in the Easter Islands time zone, after 10:00 p.m. on September 10, 2022, follow the steps below to re-enable automatic DST adjustments and ensure accurate time switching with future DST transitions. This can be done by doing either of the following: - Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to On. - Go to Control Panel > Clock and Region > Date and Time > Change time zone and check the option for “Automatically adjust clock for Daylight Saving Time”. Important: We recommend using ONLY the above workaround to mitigate the issue with time created by the new Daylight Savings Time in Chile. We do NOT recommend using any other workaround, as they can create inconsistent results and might create serious issues if not done correctly. Resolution: This issue was resolved in KB5018411 (https://support.microsoft.com/help/5018411). Note: If the workaround above was used, it should have been undone on September 11, 2022. Installation of KB5018411 (https://support.microsoft.com/help/5018411) will not change the "Automatically adjust clock for Daylight Saving Time" setting. Affected platforms: - Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1 - Server: Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2 Published: 2022-09-06T20:32:51.93+00:00 ---------------------------------------- Starting at 12:00 a.m. Saturday, September 10, 2022, the official time in Chile will advance 60 minutes in accordance with the August 9, 2022 official announcement by Chilean government about a Daylight Saving Time (DST) time zone change. This moves the DST change which was previously September 4 to September 10. Symptoms if the workaround is not used on devices between September 4, 2022 and September 11, 2022: - Time shown in Windows and apps will not be correct. - Apps and cloud services which use date and time for integral functions, such as Microsoft Teams and Microsoft Outlook, notifications and scheduling of meetings might be 60 minutes off. - Automation using date and time, such as Scheduled tasks, might not run at the expected time. - Timestamp on transactions, files, and logs will be 60 minutes off. - Operations that rely on time-dependent protocols such as Kerberos might cause authentication failures when attempting to logon or access resources. - Windows devices and apps outside of Chile might also be affected if they are connecting to servers or devices in Chile or if they are scheduling or attending meetings taking place in Chile from another location or time zone. Windows devices outside of Chile should not use the workaround, as it would change their local time on the device. Workaround: You can mitigate this issue on devices in Chile by doing either of the following on September 4, 2022 and undoing on September 11, 2022: - Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to Off. - Go to Control Panel > Clock and Region > Date and Time > Change time zone and uncheck the option for “Automatically adjust clock for Daylight Saving Time”. To mitigate this issue in the Santiago time zone, after 12:00 a.m. on September 11, 2022, and for those in the Easter Islands time zone, after 10:00 p.m. on September 10, 2022, follow the steps below to re-enable automatic DST adjustments and ensure accurate time switching with future DST transitions. This can be done by doing either of the following: - Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to On. - Go to Control Panel > Clock and Region > Date and Time > Change time zone and check the option for “Automatically adjust clock for Daylight Saving Time”. Important: We recommend using ONLY the above workaround to mitigate the issue with time created by the new Daylight Savings Time in Chile. We do NOT recommend using any other workaround, as they can create inconsistent results and might create serious issues if not done correctly. Next steps: We are working on a resolution and will provide an update in an upcoming release. Note: Microsoft plans to release an update to support this change; however, there might be insufficient time to properly build, test, and release such an update before the change goes into effect. Please use the workaround above. Affected platforms: - Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1 - Server: Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2 Published: 2022-09-02T20:42:02.99+00:00 ---------------------------------------- Starting at 12:00 a.m. Saturday, September 10, 2022, the official time in Chile will advance 60 minutes in accordance with the August 9, 2022 official announcement by Chilean government about a Daylight Saving Time (DST) time zone change. This moves the DST change which was previously September 4 to September 10. Symptoms if the workaround is not used on devices between September 4, 2022 and September 11, 222: - Time shown in Windows and apps will not be correct. - Apps and cloud services which use date and time for integral functions, such as Microsoft Teams and Microsoft Outlook, notifications and scheduling of meetings might be 60 minutes off. - Automation using date and time, such as Scheduled tasks, might not run at the expected time. - Timestamp on transactions, files, and logs will be 60 minutes off. - Operations that rely on time-dependent protocols such as Kerberos might cause authentication failures when attempting to logon or access resources. - Windows devices and apps outside of Chile might also be affected if they are connecting to servers or devices in Chile or if they are scheduling or attending meetings taking place in Chile from another location or time zone. Windows devices outside of Chile should not use the workaround, as it would change their local time on the device. Workaround: You can mitigate this issue on devices in Chile by doing either of the following on September 4, 2022 and undoing on September 11, 2022: - Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to Off. - Go to Control Panel > Clock and Region > Date and Time > Change time zone and uncheck the option for “Automatically adjust clock for Daylight Saving Time”. To mitigate this issue in the Santiago time zone, after 12:00 a.m. on September 11, 2022, and for those in the Easter Islands time zone, after 10:00 p.m. on September 10, 2022, follow the steps below to re-enable automatic DST adjustments and ensure accurate time switching with future DST transitions. This can be done by doing either of the following: - Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to On. - Go to Control Panel > Clock and Region > Date and Time > Change time zone and check the option for “Automatically adjust clock for Daylight Saving Time”. Important: We recommend using ONLY the above workaround to mitigate the issue with time created by the new Daylight Savings Time in Chile. We do NOT recommend using any other workaround, as they can create inconsistent results and might create serious issues if not done correctly. Next steps: We are working on a resolution and will provide an update in an upcoming release. Note: Microsoft plans to release an update to support this change; however, there might be insufficient time to properly build, test, and release such an update before the change goes into effect. Please use the workaround above. Affected platforms: - Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1 - Server: Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2