Formatting Date Time

Question

I have a field in the Datahora database, my class is simple and has no Annotation

public DateTime DataHora { get; set; }

i have these two fields on the screen for the user who will use a single field in BD

<div class="form-group">
     @Html.LabelFor(model => model.DataHora, "Liberar às", htmlAttributes: new { @class = "control-label col-md-2" })
     <div class="col-md-10">
         @Html.EditorFor(model => model.DataHora, new { htmlAttributes = new { @class = "form-control TextoTextBox", id="hora", DataFormatString = "{hh:mm}" } })
         @Html.ValidationMessageFor(model => model.DataHora, "", new { @class = "text-danger" })
     </div>
</div>
<div class="form-group">
      @Html.LabelFor(model => model.DataHora, "Liberar dia", htmlAttributes: new { @class = "control-label col-md-2" })
      <div class="col-md-10">
           @Html.EditorFor(model => model.DataHora, new { htmlAttributes = new { @class = "form-control TextoTextBox", id = "data", DataFormatString="{0:dd/MM/yyyy}" } })
           @Html.ValidationMessageFor(model => model.DataHora, "", new { @class = "text-danger" })
      </div>
</div>

i wanted to know what I need to do so that these two fields on the screen can use a single field of the class and the bank, because when I shoot the Focus(I click elsewhere) it displays this error message:

The field Datahora must be a date.

and another thing I noticed is that the standard date, does not allow me to insert the Brazilian format, only the American, but I did the validation using the

Dataformatstring="{0:dd/MM/yyyy}"

in Editorfor (at the end of the fields).