How To Remove Date From Posts

Do not edit the Twenty Eleven theme. It is the default WordPress theme and having access to an unedited version of the theme is vital when dealing with a range of site issues. First create a child theme for your changes.

After you’ve done creating your child theme, find .entry meta in your CSS file, and add this:

display: none;

within the curly braces.

[sig moderated as per the Forum Rules]

Ok, I made a child theme. Where is this .entry meta?

Do I need to go into files ir just the editor in wordpress?

It is advisable to create child theme first as esmi said . To remove date from your wordpress posts all you have to do is to open the single.php file and search for the date function and delete it [Or comment this function]. You can follow the steps given at this link https://bornvirtual.com/wordpress/remove-date-from-wordpress-post/926/