Type error: DateTime::__construct() expects parameter 1 to be string, object given in laravel

Question

I am trying to get late time. $latetime1 returning correct but $latetime2 not returning same as $latetime1. $systemIntime value format and $inTime value format are the same. But I am getting above error for $latetime2. What should be the correct one, please someone help me. Here is my function bellow -

public function update(Request $request, Attendance $attendance)
{
    $attendance = Attendance::find($attendance->id);
    $inTime = $attendance->intime;
    // late time caculate
    $systemIntime = DB::table('schools')
                     ->join('users', 'schools.id', '=', 'users.school_id')
                     ->select('schools.intime')
                     ->first();
    $latetime1 = (new \DateTime($inTime))->format('H:i:s');
    $latetime2 = (new \DateTime($systemIntime))->format('H:i:s');
    $late      = $latetime1->diff($latetime2);

Solution

You're passing the whole object instead of its property, so change this:

DateTime($systemIntime)

To:

DateTime($systemIntime->intime)