Missed schedules happen when WordPress's wp-cron does not fire, usually on low-traffic sites since cron runs on page visits.
- First, try a plugin like WP Missed Schedule or WP Crontrol to catch and publish stuck posts.
- For a permanent fix, disable the built-in cron by adding
define('DISABLE_WP_CRON', true);towp-config.php. - Then create a real cron job in cPanel under Cron Jobs that runs every 5-15 minutes:
wget -q -O /dev/null "https://yourdomain.com/wp-cron.php?doing_wp_cron"
This makes scheduling reliable regardless of traffic. Clear your cache after the change. If posts still miss their time, open a ticket and we will check the cron setup on your account.