As you might have noticed, Microsoft Teams has a new Calendar experience that you’ve been able to toggle on and off. The new experience is designed to more closely mirror your Calendar experience in Outlook. Microsoft announced this morning that they will be removing the toggle switch in September, and at that point everyone will be in the new experience. Here’s the Microsoft announcement wording:
Remove toggle for Calendar in Teams
We’re introducing the new Microsoft Teams calendar experience, designed to unify and enhance productivity across Microsoft 365. This calendar integrates familiar features with innovations like Microsoft Copilot and Microsoft Places, enabling seamless collaboration from anywhere. It works consistently across Teams, the new Outlook for Windows, Outlook on the web, and Places. As part of this update, the legacy calendar experience will be deprecated, and the toggle to switch between old and new calendars will be removed.
When this will happen
General Availability (Worldwide): Mid-September 2025 – End September 2025
How this affects your organization
Once this update is deployed, users accessing the Calendar app in Microsoft Teams will see the new calendar experience by default. The toggle to switch between the old and new calendar will be removed, and only the new Microsoft 365 calendar will be available. This change may impact users accustomed to the legacy calendar interface.
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