Save multiple row of checkbox value into database

I am creating a form that involves checkboxes. There is 5 checkboxes in a row. If the user adds another row, there will be another 5 checkboxes.

It looks like this,

The code i used,

<tbody id="dataTable">
  <tr>
    <td>
      <input type="text" class="form-control" name="startTime[]">
    </td>
    <td>
      <input type="text" class="form-control" name="endTime[]">
    </td>
    <td>
      <input type="checkbox" name="Monday[0]" value="1">
    </td>
    <td>
      <input type="checkbox" name="Tuesday[0]" value="1">
    </td>
    <td>
      <input type="checkbox" name="Wednesday[0]" value="1">
    </td>
    <td>
      <input type="checkbox" name="Thursday[0]" value="1">
    </td>
    <td>
      <input type="checkbox" name="Friday[0]" value="1">
    </td>
    <td>
      <input type="button" class="btn btn-danger" value="Delete" onClick="deleteRow('dataTable')" />
    </td>
  </tr>
</tbody>

The code that i use for inserting the data to the database,

<?php
                if (mysqli_connect_errno($con)) {
                    echo "Failed to connect to MySQL: " . mysqli_connect_error();
                } else {
                    if ($_POST['startTime']) {
                    foreach ($_POST["startTime"] as $key => $value) {

                            $endTime = $_POST["endTime"][$key];
                            $monday = isset($_POST["Monday"][$key]) ? 1 : 0;
                            $tuesday = isset($_POST["Tuesday"][$key]) ? 1 : 0;
                            $wednesday = isset($_POST["Wednesday"][$key]) ? 1 : 0;
                            $thursday = isset($_POST["Thursday"][$key]) ? 1 : 0;
                            $friday = isset($_POST["Friday"][$key]) ? 1 : 0;
                           

                            $sql = "INSERT INTO timetableschedule ( startTime, endTime, Monday, Tuesday, Wednesday, Thursday, Friday) " .
                                    "VALUES ('$value', '$endTime', '$monday', '$tuesday', '$wednesday', '$thursday', '$friday')";
                            mysqli_query($con, $sql);
                    }
                    }

                    echo "1 record added";
                    mysqli_close($con);
                }
                ?>

Suppose i submit the form the way i showed in the above image, i gotten this result in the database,

The value that suppose to be with the time "1600 1700" appeared on the "1400 1500" row. I would want the values to be saved accordingly as selected.