In a simple scenario where we have a UserControl and a RadDateTimePicker in it, on the SelectedDateChanged server-side event, all the data is correct on my end.
Could you please refer to the attached sample page and see what differs in your project.
If you continue to experience difficulties with this, please modify the attached files, so they could replicate the behavior in your project and provide the markup and the code behind, so we could inspect it locally.
Looking forward to your reply.
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