Question

I have a custom metabox, where I store the date in plain text like this: dd/mm/yyand now I need to order the posts by that date.The custom field is called event_informations_date

<?php
    $args = array( 'post_type' => 'Event','posts_per_page' => 1000 );
    $loop = new WP_Query( $args );
?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>

Answer 1

First, save the date as a timestamp. then you can do the following in your WP_Query

$query = new WP_Query( 
           array ( 
              'orderby' => 'meta_value_num', 
              'meta_key'=> ' event_informations_date'
           )
         );