I tried this below but it seems it only compares the day and not the rest of the date. If the day is a smaller number than today’s day, it does not display it..
<?php $loop = new WP_Query( array( 'post_type' => 'evenement', 'posts_per_page' => 10 ) ); ?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>
<?php
$today = date("d/m/y");
$date_event = date(get_field('start_event'));
?>
<?php if (get_field('start_event') >= $today) { ?>
<a href="<?php echo get_permalink() ?>">
<div class="image">
<?php echo the_post_thumbnail(); ?>
</div>
<div class="description">
<div class="dates">
<?php echo get_field('start_event') ?> à <?php echo get_field('hour_start_event') ?>
</div>
<div class="nom">
<?php echo the_title(); ?>
</div>
</div>
</a>
<?php }; ?>
<?php endwhile; ?>
