carbon sub days code example

Example 1: carbon two day ago

$dt  =Carbon::now();

echo $dt->subDay();                      // 2012-03-03 00:00:00
echo $dt->subDays(29);

Example 2: carbon subdays

$users = Users::where('status_id', 'active')
           ->where( 'created_at', '>', Carbon::now()->subDays(30))
           ->get();

Example 3: carbon add few hours

Carbon::now('UTC')->addHour($hours)->format('Y-m-d H:i:s')