Microsoft's blog has announced changes to support the time zone changes in
British Columbia and Alberta.
https://techcommunity.microsoft.com/category/windows/blog/dstblog
Interim guidance for British Columbia time zone changes 2026
Interim guidance for Alberta time zone changes 2026
"The following platforms will receive an update to support this time zone
change as part of September 2026 non-security update:
Windows 11, version 26H2
Windows 11, version 26H1
Windows 11, version 25H2
Windows 11, version 24H2
Remaining versions of Windows will receive the update as part of October 2026
monthly quality update."
