Very odd event behaviour for onChange on Telerik MVC DatePicker.

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ASP.NET

Telerik

MVC3

function RaceDate_onChange() {
    var pickedDate = $(this).data('tDatePicker').value();
    var month = pickedDate.getMonth() + 1;
    $.get("/RaceCard/Details?year=" + pickedDate.getFullYear() + "&month=" + month + "&day=" + pickedDate.getDate());
}

@Html.Telerik().DatePickerFor(model => model.RaceDate).ClientEvents(events => events.OnChange("RaceDate_onChange"))

[HttpGet]
public ActionResult Details(int year, int month, int day)
{
    var viewModel = new RaceCardModel { Metadata = DetailModelMetadata.Display, RaceDate = new DateTime(year, month, day) };
    var raceCard = _raceCardService.GetByRaceDate(viewModel.RaceDate) ?? new RaceCard { RaceDate = DateTime.Now };
    viewModel.MapFromEntity(raceCard);
    return View(viewModel);
}

In the above JavaScript even handler, Telerik MVC DatePicker, and controller action respectively, in GET requests to the Details action, the day value is always one day behind the DatePicker. E.g. The first value is set from a view model property, when the view is rendered, say 3. I then click on 14 and hit my breakpoint in the action method. The day value is 3. When I click on 29 and hit the breakpoint, the day value is 14.