date_picker_controller.php

 (new THead)
  ->setComponents([


    (new FiltersRow)
      ->addComponents([
        (new Filter((new FilterConfig())->setOperator(FilterConfig::OPERATOR_EQ)))
          ->setName('d_doc')
          ->setTemplate('*.components.filters.datetime_picker')
          ->setRenderSection('filters_row_column_d_doc')
          ->setFilteringFunc(function ($val, EloquentDataProvider $provider) {
            $date = Carbon::createFromFormat('d/m/Y', $val)->toDateString();
            $provider->getBuilder()->where('d_doc', '=', $date);
          }),

    ]),
...

datetime_picker.php

<?php
    /** @var Nayjest\Grids\Components\Filter $component */
    $id = uniqid();
?>
<?php if ($component->getLabel()): ?>
    <span><?= $component->getLabel() ?></span>
<?php endif ?>
<input
        class="form-control input-sm"
        style="display: inline; width: 85px; margin-right: 10px"
        name="<?= $component->getInputName() ?>"
        type="text"
        value="<?= $component->getValue() ?>"
        id="<?= $id ?>"
>
<script>
    $(function () {
        // DATES
        // https://github.com/xdan/datetimepicker
        jQuery.datetimepicker.setLocale('it');
        var opts = {
            timepicker: false,
            format: 'd/m/Y',
        }

        $('#<?= $id ?>').datetimepicker(opts);
    })
</script>