John, I know this thread has been dead for a bit but I have a question about the code snippet above- is there any way to force the post_status to future? I tried adding
'post_status' => 'future',
to the wp_update_post array but it still publishes the post on the date specified in the ACF field. I have been trying to figure out how to schedule a post with ACF for two weeks now and this is the closest I have gotten. Any help would be appreciated.