KTC/app/src/main/res/layout/layout_timetable.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/shape_background_secondary"
    android:elevation="8sp"
    android:orientation="vertical"
    tools:layout_editor_absoluteX="8dp"
    tools:layout_editor_absoluteY="9dp">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/day_root"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/day_header"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/news_date"
            android:textSize="16sp"
            android:textStyle="bold"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <LinearLayout
            android:id="@+id/hr_right"
            android:layout_width="0dp"
            android:layout_height="1dp"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:background="@color/text"
            android:orientation="horizontal"
            app:layout_constraintBottom_toBottomOf="@+id/day_header"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toEndOf="@+id/day_header"
            app:layout_constraintTop_toTopOf="@+id/day_header" />

        <LinearLayout
            android:id="@+id/hr_left"
            android:layout_width="0dp"
            android:layout_height="1dp"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:background="@color/text"
            android:orientation="horizontal"
            app:layout_constraintBottom_toBottomOf="@+id/day_header"
            app:layout_constraintEnd_toStartOf="@+id/day_header"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="@+id/day_header">

        </LinearLayout>

    </androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>