outlook doesn't apply selected time zone on ToDo Tasks

Constantin Kwiatkowski 45 Reputation points


As we said, Outlook doesn't apply the selected time zone on ToDo Tasks. Local time is UTC+5:30 and we set a task on March 17 4 am. If we read the task out via MS Graph then we get we tasks with the startdate March 16 18:30:00 (UTC). If we use the selected time zone, the expected value supposed to be March 17 3 am. Thanks

A family of Microsoft email and calendar products.
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Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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Accepted answer
  1. CarlZhao-MSFT 38,676 Reputation points

    Hi @Constantin Kwiatkowski

    You should attach the request header of your target time zone when calling the graph API, otherwise it will return your task information in the default UTC time.

    GET https://graph.microsoft.com/v1.0/me/todo/lists/{todoTaskListId}/tasks/{taskId}
    Prefer: outlook.timezone="{your target time zone}"

    Hope this helps.

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