Hi @Mighani ,
To work around this issue, set the time zone on the Exchange Server to a region that matches the Coordinated Universal Time (UTC) zone of the country/region where the server is located. Make sure that the UTC zone for that country/region doesn't follow DST.
Set Regional Settings in Outlook on the web
You may also have to set the time zone in Microsoft Outlook Web App or in Outlook Web App. To do this, follow these steps, as appropriate for your situation.
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