Following my previous post around multilingual aspects of SharePoint Online: Modify Site Regional and Language settings with JSOM and JavaScript
Here is a bunch of CSOM code which will update the personal regional settings of the current user or another user (if you are a tenant admin and have the rights to update user profiles):
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Here is a bunch of CSOM code which will update the personal regional settings of the current user or another user (if you are a tenant admin and have the rights to update user profiles):
Before update:
The code:
After update:
Thanks!