WP: PHP - Order a query by ACF date picker

WP: PHP - Order a query by ACF date picker

<?php
        //Order a query by ACF date picker
        $event = get_posts(array(
            'post_type' => 'events',
            'posts_per_page' => 4,
            'meta_key' => 'event_date', // name of custom field
            'orderby' => 'meta_value_num',
            'order' => 'ASC'
                ));
        if ($event) {
            foreach ($event as $post) {
                setup_postdata($post);
                ?>
                <?php $printdate = DateTime::createFromFormat('Ymd', get_post_meta($post->ID, 'event_date', 'true')); ?>
                <?php get_template_part('templates/event'); ?>
            <?php
            }
            wp_reset_postdata(); // IMPORTANT - reset the $post object so the rest of the page works correctly
        }
        ?>

doesn't work for me

Excellent! It Works! Thank you very much @landru247.

Checkout my code.

$args = array(
'post_type' => 'events',
'posts_per_page' => 5,
'meta_key' => 'event_date', // name of custom field
'orderby' => 'meta_value_num',
'order' => 'ASC'
);
$events_posts = get_posts( $args );