Last updated date function

I want to show the “last updated date” on the front of the post and page.
so I add the following code in the functions.php file.

function wpb_last_updated_date( $content ) {
$u_time = get_the_time('U');
$u_modified_time = get_the_modified_time('U');
if ($u_modified_time >= $u_time + 86400) {
$updated_date = get_the_modified_time('F jS, Y');
$updated_time = get_the_modified_time('h:i a');
$custom_content .= '<p class="last-updated" style="text-align:right">Last updated on '. $updated_date . ' at '. $updated_time .'</p>';
}
    $custom_content .= $content;
    return $custom_content;
}

add_filter( 'the_content', 'wpb_last_updated_date' );

It works,it show on every page.
but I don`t want to show it on my home page.
How can I do ?