仅显示未来事件（cpt）

My current code shows 5 posts from the cpt 'events'. This is the code i'm using:

//get post type ==> events
global $post;
$args = array(
      'post_type' => 'events',
      'numberposts' => $data['home_events_count'],
      'orderby' => 'meta_value',
      'meta_key' => 'timestamp_earth_event_start_date',
      'meta_query' => $meta_query
);

I want to filter out posts (events) that their 'timestamp_earth_event_start_date' are older than the current date.

I've tried to modify the code myself, but still past events are shown.

Any help would be most appreciated!

Try this one passing query string

$numposts=$data['home_events_count'];
    query_posts('post_type=events
    &post_status=publish&numberposts=$numposts
    &posts_per_page=1
    &meta_key=timestamp_earth_event_start_date
    &orderby=meta_value_num
    &order=DESC')

By passing array

$args = array(
    'post_status' => 'publish',
    'post_type' =  'events' ,
    'meta_key' => 'timestamp_earth_event_start_date',
    'order' => 'DESC',
    'orderby' => 'meta_value_num'
);
$event_posts = new WP_Query( $args );

Other option you can add filter for the query like

add_filter( 'posts_orderby', 'my_posts_orderby_date', 10, 2 );
function my_posts_orderby_date( $orderby, $query ) {
    global $wpdb;
    return " CAST( $wpdb->postmeta.meta_value AS DATE ) " . $query->get( 'order' );
}