WP-Cron works by: on every page load, a list of scheduled tasks is checked to see what needs to be run. Any tasks scheduled to be run will be run during that page load. WP-Cron does not run constantly as the system cron does; it is only triggered on page load. Scheduling errors could occur if you schedule a task for 2:00PM and no page loads occur until 5:00PM.
I presume from that, 'page load' means either someone visiting your site and requesting a page, or someone logging in and loading an admin page (eg to edit content) in the backend as well.
Sure, it's in the Plugin Handbook at developer.wordpress.org/plugins/cron/
I presume from that, 'page load' means either someone visiting your site and requesting a page, or someone logging in and loading an admin page (eg to edit content) in the backend as well.
Interesting, thanks!