Datatable date sort not work.

You're mixing php dates with javascript dates, that's not going to work. You need to pick one of them and keep using that. So either convert the php date to a javascript date and work from there or only use javascript dates.

For javascript dates moment js is the equal of carbon for php: https://momentjs.com/

I have used that. but still not work

here's the code.

  <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.4/moment.min.js"></script>
    <script src="https://cdn.datatables.net/plug-ins/1.10.12/sorting/datetime-moment.js"></script>
<script>
    $(document).ready(function () {
        $.fn.dataTable.moment( 'DD/MM/YYYY' );
        $('#purchase-history').daterangepicker(null, function (start, end, label) {
            bringData( start.format('YYYY-MM-DD') , end.format('YYYY-MM-DD'));
        });
        bringData('{{date("Y/m/d" , strtotime("-1 months"))}}' , '{{date("Y/m/d")}}');
        function bringData(start, end) {
            $.ajax({
                url: base + '/admin/used-boxes-data',
                type: 'post',
                data: 'start='+start+'&end='+end,
                async: false,
                success: function (respond) {
                    if (respond.success) {
                        $('#content').html(respond.data);
                          $("#used").DataTable({
                              ordering: true,
                              paging: true,
                              searching: true,
                                dom: "Blfrtip",
                                buttons: [
                                    {
                                        extend: "copy",
                                        className: "btn-sm"
                                    },
                                    {
                                        extend: "csv",
                                        className: "btn-sm"
                                    },
                                    {
                                        extend: "excel",
                                        className: "btn-sm"
                                    },
                                    {
                                        extend: "pdfHtml5",
                                        className: "btn-sm"
                                    },
                                    {
                                        extend: "print",
                                        className: "btn-sm"
                                    }
                                ],
                                responsive: true,
                                order: [[ 2, "desc" ]],
                            });

                    } else {

                    }
                },
                complete: function () {
                }
            });
        }
    });
</script>

Any idea?