MVC Foolproof Unobtrusive date comparison format

Question

I'm trying to validate an EndDate to be greater than a StartDate using MVC Foolproof Unobtrusive validation.

The problem is that it's using American date format, while my app is supposed to be in European date format. i.e. a period of 03/02 - 02/03 (3 Feb - 2 Mar) is being read as 2 Mar - 3 Feb and thus throwing validation errors.

My model:

    [Required("StartDate")]
    [LessThanOrEqualTo("EndDate", ErrorMessageResourceName = "StartDateLessThanEndDate", ErrorMessageResourceType = typeof(Resources.Resources))]
    [System.ComponentModel.DataAnnotations.DataType(System.ComponentModel.DataAnnotations.DataType.Date)]
    [System.ComponentModel.DataAnnotations.DisplayFormat(DataFormatString = "{0:dd/MM/yyyy}", ApplyFormatInEditMode = true)]
    public DateTime StartDate { get; set; }
    [Required("EndDate")]
    [GreaterThanOrEqualTo("StartDate", ErrorMessageResourceName = "EndDateGreaterThanStartDate", ErrorMessageResourceType = typeof(Resources.Resources))]
    [System.ComponentModel.DataAnnotations.DataType(System.ComponentModel.DataAnnotations.DataType.Date)]
    [System.ComponentModel.DataAnnotations.DisplayFormat(DataFormatString = "{0:dd/MM/yyyy}", ApplyFormatInEditMode = true)]
    public DateTime EndDate { get; set; }

In the .cshtml:

    $('#StartDate, #EndDate').datepicker({
            dateFormat: "dd/mm/yy",
            defaultDate: $(this).val()
        });

-snip-

    <div class="row">
                <label class="col-xs-6">@Resources.StartDate</label>
                <div class="col-xs-6">
                    @Html.TextBoxFor(x => x.StartDate, "{0:dd/MM/yyyy}", new { @class = "form-control" })
                    @Html.ValidationMessageFor(a => a.StartDate)
                </div>
            </div>

I've already done an override on the jQuery validation date parsing as follows, but it seems to have no effect, it's still being compared in American.

    jQuery(function ($) {
        if ($.validator != null) {
            $.validator.addMethod('date',
                function (value, element) {
                    if (this.optional(element)) {
                        return true;
                    }

                    try {
                        $.datepicker.parseDate('dd/mm/yy', value);
                        return true;
                    }
                    catch (err) {
                        return false;
                    }
                });
        }
    });