After affected Canadian regions skipped the November 1 clock change, Microsoft confirmed problems extend beyond Outlook and Exchange Online to Power Automate, Fabric, Bookings, Dynamics 365 Finance and Operations, and SharePoint on-premises. An Exchange Online PowerShell cmdlet to fix nonrecurring meetings is planned by November 4; Microsoft has not set a date for recurring-meeting fixes. Several services need separate workarounds, so updating Windows alone may not be enough.
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