Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I have seen it here: wp_schedule_event
add_action( 'wp', 'prefix_setup_schedule' );
I couldn't find this hook anywhere in documentation, how does it work?
The hook is described on this page in Action reference section.
Required, but never shown