probabilmente devi mettere degli apici

codice:
date = "<?php echo $arrData[1];?> + "/" + <?php echo $arrData[0];?> + "/" + <?php echo $arrData[2];?>";
time = "<?php echo $arrData[3];?> + ":" + <?php echo $arrData[4];?> + ":" + <?php echo $arrData[5];?>";