01/01/0001 when passing birth date to control - validation

Question

I want to save a register form and must save birth date in another format.
In model I have:
public DateTime BirthDate { get; set; }
In the view:
#model Univer.Model.KarApplicant
#{
ViewData["Title"] = "";
}
<div class="container MainMiddle" style="padding-top:50px;">
<hr />
<div class="row container-fluid">
<div class="col-md-10">
<form asp-action="Register">
<div asp-validation-summary="ModelOnly" class="text-danger">
</div>
<div class="form-row">
....
<div class="form-group col-md-4">
<label asp-for="BirthDate" class="control-label"></label>
<div class="input-group mb-2 mr-sm-2">
<div class="input-group-prepend">
<div class="input-group-text"><i class="fas fa-calendar-alt"></i></div>
</div>
<input asp-for="BirthDate" class="form-control example1" data-val="false" />
<span asp-validation-for="BirthDate" class="text-danger"></span>
</div>
</div>
</div>
....
<div class="form-row">
</div>
<div class="form-group float-left">
<input type="submit" value="next" class="btn btn-lg btn-primary btn-block" />
</div>
</div>
</form>
</div>
</div>
</div>
#section Scripts {
#{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
<script src="~/lib/persian-date/persian-date.js"></script>
<script src="~/lib/persian-datepicker/js/persian-datepicker.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$(".example1").pDatepicker();
});
</script>
}
When I click on Submit button and send data to action of controller, with breakpoint check form value that pass to controller, birth dates value that are passed to controller is 01/01/0001 but I have value in persian mode in input in view.
My question is: why when set value with javascript in input and send to controller the value doesn't get sent?
UPDATE: after the comment i Added this code
public void ConfigureServices(IServiceCollection services)
{
services.Configure<RequestLocalizationOptions>(options =>
{
options.DefaultRequestCulture = new RequestCulture("fa-IR");
}); .....
}
and
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{....
app.UseRequestLocalization();
app.UseMvc()....
}