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926 votesthinking about it · AdminMicrosoft 365 Groups Feedback (Product Owner, Microsoft Office 365) responded
We’re considering how this could be implemented across the group identity.
An error occurred while saving the commentTimothy Merridew commented
Also along with setting the timezone you need to be able to set the regional settings, so that excel documents know what date format to use, and when looking at dates they are based on the users regional settings.