Date before H1

Hi,

is it possible to edit the following code so that it appears before the H1 of each post?

add_filter( 'generate_post_date_output', function( $output, $time_string ) {
	if ( is_single() ) {
		$time_string = '<span class="date-label">veröffentlicht </span><span><time class="entry-date published" datetime="%1$s" itemprop="datePublished">%2$s </time></span>';

		$updated_time = get_the_modified_time( 'U' );
		$published_time = get_the_time( 'U' ) + 86400;

		if ( $updated_time > $published_time ) {
			$time_string .= '<span class="date-label"> - aktualisiert </span><span><time class="entry-date updated-date" datetime="%3$s" itemprop="dateModified">%4$s </time></span>';
		}

		$time_string = sprintf( $time_string,
			esc_attr( get_the_date( 'c' ) ),
			esc_html( get_the_date() ),
			esc_attr( get_the_modified_date( 'c' ) ),
			esc_html( get_the_modified_date() )
		);
	}

return $time_string;
}, 10, 2 );

Thank you very much!

Greetings Kathrin