The code reference includes a collection of functions that are used on Wordpress sites, as well as a glossary of Developer Resources, which covers a variety of topics, including plugin and theme development.
This function will display the date that a post was created. It will only display a given date once, so if multiple posts are created on the same day, that date will only appear one time.
The Wordpress Code Reference is a go-to resource for implementing any necessary code to a Wordpress website. It is a very helpful tool for anybody involved in Wordpress development. Since it comes from Wordpress.org, it can be trusted to be reliable and up to date.