carbon start of hour zero code example
Example 1: carbon date from format
Carbon::createFromFormat('Y-m-d H:i:s', $request->date)->format('d-m-Y')
Example 2: carbon add few hours
Carbon::now('UTC')->addHour($hours)->format('Y-m-d H:i:s')
Carbon::createFromFormat('Y-m-d H:i:s', $request->date)->format('d-m-Y')
Carbon::now('UTC')->addHour($hours)->format('Y-m-d H:i:s')