Hide past events from Explore page

functions.php

<?php

// Hide past events from Explore page.
add_filter( 'get_job_listings_query_args', function( $args ) {
    $listing_types = ['event'];
    if ( empty( $args['meta_query'] ) || empty( $args['meta_query']['listing_type_query'] ) ) {
        return $args;
    }

    // Only apply to the listing types defined in $listing_types.
    if ( ! in_array( $args['meta_query']['listing_type_query']['value'], $listing_types ) ) {
        return $args;
    }

    $args['meta_query'][] = [
        'key' => '_job_date',
        'value' => date('Y-m-d'),
        'compare' => '>=',
        'type' => 'DATE',
    ];

    return $args;
}, 100 );