How to insert multiple single array with multiple object

I'm having a problem trying to insert an array with multiple object.

I have 3 tables Schedules, ScheduleTime, ScheduleDays

The Schedule Time and Days should be multiple insert. It works fine when we tried to insert using a single object. But having a problem inserting multiple data when the object is not inside the array.

The ScheduleDays is also an array.

I tried something like bellow. Would someone please help to correct the controller method -

Here's the Schedule controller.

	$schedule = new Schedule;
        $schedule->setConnection($db);
        $schedule->section_id = $request->section_id;
        $schedule->save();

        $schedules = [];
        if (isset($request->time_start) && count($request->time_start) > 0) {
            foreach ($request->time_start as $day => $v) {
                $schedules[] = [
                    'schedule_id' => $schedule->id,
                    'subject_id' => $request->subject_id,
                    'time_start' => $request->time_start[$day],
                    'time_end' => $request->time_end[$day],
                    'duration' => $request->duration[$day],
                    'created_at'=>$now,
                    'updated_at'=>$now
                ];
            }
        }

        ScheduleTime::on($db)->insert($schedules);

        
        $days = [];
        if (isset($request->days) && count($request->days) > 0) {
            foreach ($request->days as $day => $v) {
                // $daysArr = $request->input('days');
                // $daysData = implode(",", $daysArr);
                $days[] = [
                    'schedule_id' => $schedule->id,
                    'days' => $request->days[$day],
                    'created_at'=>$now,
                    'updated_at'=>$now
                ];
            }
        }

        ScheduleDay::on($db)->insert($days);

And this is what it looks like

Array
(
    [0]:
    day: (2) ["Mon","Tues"]
    duration: [60]
    section_id: 1
    subject_id: 1
    time_start: ["8:00"]
    time_end: ["9:00"]

    [1]:
    day: (2) ["Mon","Tues"]
    duration: [60]
    section_id: 1
    subject_id: 1
    time_start: ["8:00"]
    time_end: ["9:00"]

    [2]:
    day: (2) ["Mon","Tues"]
    duration: [60]
    section_id: 1
    subject_id: 1
    time_start: ["8:00"]
    time_end: ["9:00"]
)