When a visitor loads your site, this lightweight script checks to see if any scheduled posts have been missed. If so, it publishes them immediately.
- Go to Plugins, Add New, Upload Plugin.
- Upload the ZIP file.
- Activate the plugin through the Plugins screen in WordPress
NOTE: Make sure that your timezone is set correctly in Settings->General.
Every time someone loads your your home page or a single post/article.
Make sure your time zone is set correctly. Make sure there are no plugin conflicts by turning off your other plugins, one by one. Especially caching plugins.
If your database has a significant number of scheduled posts (over 10k) or you have heavy traffic, then you might not have enough memory allocated to WordPress. You can try adding this line in your wp_config.php file:
If youre still having memory problems, then talk to your web host about your root problem: the built-in WordPress Cron Scheduler is not publishing your scheduled posts.