I have a post scheduled to go out 1 week from now. I made the change today to schedule it and let it be.

When it finally gets published, the post date is the date it was scheduled to be published. But the modified date is still 1 week earlier!

How do I make it so that as soon as a scheduled post gets published it updates the modified date to the post date?


With the help of someone else, I managed to figure this out.

Add this to your functions.php:

// Scheduled posts should update modified date when published
function update_modified_date_to_post_date( $post ) {
    $updated_data = [
        'ID'                => $post->ID,
        'post_modified'     => $post->post_date,
        'post_modified_gmt' => $post->post_date_gmt
    wp_update_post( $updated_data );
add_action( 'future_to_publish', 'update_modified_date_to_post_date', 10, 1 );
  • wp_update_post actually disregard post_modified, post_modified_gmt and set the current time. – fat_mike May 10 '19 at 2:03

wp_update_post actually sets the current time to post_modified and post_modified_gmt each time is called.

You can use a $wpdb query for this to actually work.

function update_modified_date_to_post_date( $post ) {
    global $wpdb;
    $wpdb->query("UPDATE $wpdb->posts SET post_modified = '{$post->post_date}', post_modified_gmt = '{$post->post_date_gmt}' WHERE ID = {$post->ID}" );
add_action( 'future_to_publish', 'update_modified_date_to_post_date', 10, 1 );

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