Event countdown WP loop with datepicker ACF

countdown.php

<!-- competitions countdown with post type "competição" -->
    <?php
    //If the event is happening
    $args = array(
        'post_type' => 'competicao',
        'meta_query' => [
            'relation' => 'AND',
            [
                'key' => 'date_picker',
                'compare' => '<=',
                'value' => $today->format('Ymd'),
            ],
            [
                'key' => 'date_picker_fim',
                'compare' => '>=',
                'value' => $today->format('Ymd'),
            ]
        ],
        'meta_key' => 'date_picker',
        'posts_per_page' => 1,
        'orderby' => 'meta_value_num',
        'order' => 'ASC'
    );

    $post_query = new WP_Query($args);
    if ($post_query->have_posts()) { ?>
        <div class="temporizador">
            <?php while ($post_query->have_posts()) : $post_query->the_post();
                $today = new DateTime('today 00:00');
                $date = DateTime::createFromFormat('Ymd', get_field('date_picker'));
                $intervalo = $today->diff($date); ?>
                <div class="temp">
                    <i class="material-icons">&#xE8B5;</i> Acontecendo:
                </div>
                <div class="text">
                    <b> <?php the_title(); ?></b>
                </div>
                <a href="<?php echo the_permalink(); ?>" class="btn">Saiba Mais</a>
            <?php endwhile; ?>
        </div>
    <?php } else {
      //If the event will happen
        $args = array(
            'post_type' => 'competicao',
            'meta_query' => [
                ['key' => 'date_picker', 'value' => $today->format('Ymd'), 'compare' => '>='],
            ],
            'meta_key' => 'date_picker',
            'posts_per_page' => 1,
            'orderby' => 'meta_value_num',
            'order' => 'ASC'
        );
        $post_query = new WP_Query($args);
        if ($post_query->have_posts()) { ?>
            <div class="temporizador">
                <?php while ($post_query->have_posts()) : $post_query->the_post();
                    $today = new DateTime('today 00:00');
                    $date = DateTime::createFromFormat('Ymd', get_field('date_picker'));
                    $intervalo = $today->diff($date); ?>
                    <div class="temp">
                        <i class="material-icons">&#xE8B5;</i> <?php echo "{$intervalo->days} dias"; ?>
                    </div>
                    <div class="text">
                        To next event: <b> <?php the_title(); ?></b>
                    </div>
                <?php endwhile; ?>
            </div>

        <?php }
    } ?>