functions.php

<?php

/**
 * Add Time to Display Posts Shortcode
 * @link https://displayposts.com/2019/01/04/display-time-after-post-date/
 *
 */
function be_display_posts_time( $output, $original_atts, $image, $title, $date, $excerpt, $inner_wrapper, $content, $class, $author, $category_display_text ) {

	// Only run our code if include_time is set
	if( empty( $original_atts['include_time'] ) )
		return $output;
    
	$time = ' at ' . get_the_time( 'g:i a' );

	// Now let's rebuild the output and add the $time to it
	$output = '<' . $inner_wrapper . ' class="' . implode( ' ', $class ) . '">' . $image . $title . $date . $time . $author . $category_display_text . $excerpt . $content . '</' . $inner_wrapper . '>';

	// Finally we'll return the modified output
	return $output;
}
add_filter( 'display_posts_shortcode_output', 'be_display_posts_time', 10, 11 );