Change date format laravel 5

i have something problem in there i want to change date format. this my view :

<?php echo $post->tanggal?>

and my controller :

    public function getIndex()
    {   
        $posts = DB::table("lembur_karyawan")
        ->orderBy('id', 'desc')
        ->paginate(6);

        return view('user',['posts'=>$posts]);
    }

this my view and what i want to do

if someone tell me to use carbon please explain how to use it ?

NB : i use laravel 5.1

via Chebli Mohamed