gistfile1.js

    app.directive('datepickerLocaldate', ['$parse', function ($parse) {
        var directive = {
            restrict: 'A',
            require: ['ngModel'],
            link: link
        };
        return directive;

        function link(scope, element, attr, ctrls) {
            var ngModelController = ctrls[0];

            // called with a JavaScript Date object when picked from the datepicker
            ngModelController.$parsers.push(function (viewValue) {
                // undo the timezone adjustment we did during the formatting
                viewValue.setMinutes(viewValue.getMinutes() - viewValue.getTimezoneOffset());
                // we just want a local date in ISO format
                return viewValue.toISOString().substring(0, 10);
            });

            // called with a 'yyyy-mm-dd' string to format
            ngModelController.$formatters.push(function (modelValue) {
                if (!modelValue) {
                    return undefined;
                }
                // date constructor will apply timezone deviations from UTC (i.e. if locale is behind UTC 'dt' will be one day behind)
                var dt = new Date(modelValue);
                // 'undo' the timezone offset again (so we end up on the original date again)
                dt.setMinutes(dt.getMinutes() + dt.getTimezoneOffset());
                return dt;
            });
        }
    }]);