Windows time zone data: Manitoba moves permanently to UTC-5, clocks not set back on 2026-11-01
Summary
Manitoba is permanently moving to UTC-5 and will not set its clocks back on November 1, 2026. Windows devices in Manitoba are affected because their time zone data does not yet reflect this. Microsoft states a fix is releasing in October 2026 and recommends a temporary workaround for devices that cannot be updated in time.
Symptoms
Windows devices in Manitoba would set their clocks back on November 1, 2026, and then show a time one hour different from the local legal time.
Affected
- Windows devices in Manitoba that use the Manitoba time zone data
- The source excerpt names no specific Windows versions or KB numbers
Workaround
- Microsoft recommends a temporary workaround for devices that cannot be updated in time.
- The workaround steps are not part of the available source excerpt; see the Daylight Saving Time & Time Zone Blog from Microsoft for the full guidance.
Fix
Microsoft states a fix is releasing in October 2026. The source excerpt names no KB number; check the Microsoft guidance for the exact update.
Recommendation
Install the Windows update with the Manitoba time zone fix on all devices in Manitoba before November 1, 2026. For devices that cannot be updated in time, apply the interim workaround from Microsoft's Daylight Saving Time & Time Zone Blog. Afterwards, check that the clocks show the correct time.
Sources
- Interim guidance for Manitoba time zone changes Vendor · techcommunity.microsoft.com
- Daylight Saving Time & Time Zone Blog Vendor · techcommunity.microsoft.com
Compiled from the sources listed and translated with AI (Claude); status and dates come from the vendor. The vendor’s statements are authoritative. Updated 1 Nov 2026, 15:55.
Where the information comes from
We continuously read the vendors’ official sources, community reports and trade media and summarise them in our own words, with a link to the source:
- Microsoft: Windows release health (Windows 10/11, Server 2016 to 2025), Windows message center, known issues of Microsoft 365 Apps (Outlook, Excel, Word, PowerPoint), Edge, Intune, Autopilot, Windows 365 and Entra Connect, Microsoft KB articles with timelines, Exchange and Windows IT Pro blogs, optionally Microsoft 365 service health and message center
- other vendors: Veeam KB, Citrix (known issues), Ubuntu and Debian (regressions), Broadcom (VMware), Fortinet, Cisco, Mozilla, Let’s Encrypt
- community (title, short excerpt and link only, without the names of the authors): Microsoft Q&A, Microsoft Tech Community (discussions), Veeam R&D Forums, Eleven Forum
- targeted web research with AI (Claude), e.g. on the updates of the month – this also finds discussions on Reddit and in forums; such entries are labelled as community reports until the vendor confirms them
- early warning from trade media (title and link only): Born’s Tech and Windows World, BleepingComputer, AskWoody, Windows Latest, Windows Central, gHacks, The Windows Club, Deskmodder, Dr. Windows, WindowsArea, Frankys Web, heise online
Summary and translation with AI (Claude by Anthropic) – without any data of visitors.
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