wordpress-wp-query-sortby-advanced-custom-field

<?php

	$args = array(
        'post_type'                 => 'notices-mariners',
        'post_status'               => 'publish',
        'posts_per_page'            => 2,
        'meta_key'					=> 'mariners_date_selected',
		'orderby'					=> 'meta_value_num',
		'order'						=> 'ASC'
    );

	// The query
	$child_query = new WP_Query($args);

	// The loop
	if( $child_query->have_posts() ) : while ( $child_query->have_posts() ) : $child_query->the_post(); ?>

		<!-- article -->
		<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

			<div class="row">
				<div class="col-md-9">

					<div class="date"><?php echo get_field('mariners_date_selected'); ?></div>

					<div class="notice"><?php echo get_the_title(); ?></div>

					<?php

						$rows = get_field('mariners_list_repeater', get_the_ID());

						if($rows) {

							echo "<!-- mariners_list_repeater -->";

								echo "<ul class='mariners_list'>";

									foreach($rows as $row) {

										echo "<li class='item'>";

												echo $row['mariners_list_item'];

										echo "</li>";

									}

								echo "</ul>";

							echo "<!-- /mariners_list_repeater -->";

						}

						if( get_field('mariners_notice_pdf', get_the_ID()) ) {
							echo '<a href="'.get_field("mariners_notice_pdf", get_the_ID()).'" title="'.get_the_title().'" class="view-notice" target="_blank">View Notice</a>';
						}														
					
					?>

				</div>
			</div>

		</article>
		<!-- /article -->

	<?php endwhile; endif;
	 wp_reset_postdata();

?>