<Chronometer
        android:id="@+id/chronometer"
        android:layout_width="368dp"
        android:layout_height="58dp"
        android:layout_margin="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="64dp"
        android:layout_marginRight="16dp"
        android:textAlignment="center"
        android:textAppearance="@style/TextAppearance.AppCompat.Large"
        android:textSize="36sp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/titre"></Chronometer>