GetUserTimezone flow demonstrates how to retrieve a user's timezone via a GRAPH request.
The flow does not require premium connectors.
The flow consists of a trigger and 2 actions:
URI:
https://graph.microsoft.com/v1.0/me/MailboxSettings
Inputs:
@{outputs('Send_an_HTTP_request_to_get_Mailbox_Settings')?['body']?['timeZone']}

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