magento2 – Magento 2 admin grid join query not working with date filter

I have joined two tables like below in my ResourceModel Collection file.

 protected function _initSelect() {
        $this->addFilterToMap('entity_id', 'main_table.entity_id');
        $this->addFilterToMap('increment_id', 'main_table.entity_id');
        $this->addFilterToMap('created_at', 'main_table.entity_id');
        parent::_initSelect();
        $this->getSelect()->joinLeft(
            ('secondTable' => $this->getTable('sales_order_grid')), //2nd table name by which you want to join mail table
            'main_table.entity_id = secondTable.entity_id', // common column which available in both table 
            '*' // '*' define that you want all column of 2nd table. if you want some particular column then you can define as ('column1','column2')
        );
    }

Where my mainTable is sales_order

I have called created date in ui_component like below.

    <column name="created_at" class="MagentoUiComponentListingColumnsDate" >
               <argument name="data" xsi:type="array">
                   <item name="config" xsi:type="array">
                       <item name="filter" xsi:type="string">dateRange</item>
                       <item name="component" xsi:type="string">Magento_Ui/js/grid/columns/date</item>
                       <item name="dataType" xsi:type="string">date</item>
                       <item name="label" xsi:type="string" translate="true">Order Date</item>
                       <!-- <item name="dateFormat" xsi:type="string">MMM dd, YYYY</item> //set date format as per your requirement -->
                   </item>
               </argument>
     </column>

But if I filter by the date the results are wrong. I’m searching for the year 2020 it is showing for 2016.