Hi olotu. The usual way to do this is to use the CSS property “display:none”. However, the problem is that the date in the post-byline is just text so you don’t really have an easy way to manipulate it. What you could do is copy the theme file single.php to a child theme and change the code to add a class to the date portion of the meta data.
This is the default code in single.php:
<p class="post-byline"><?php _e('by','hueman'); ?> <?php the_author_posts_link(); ?> · <?php the_time(get_option('date_format')); ?></p>
You could add a class to the date portion with this:
<p class="post-byline"><?php _e('by','hueman'); ?> <?php the_author_posts_link(); ?> · <span class="my-post-date"><?php the_time(get_option('date_format')); ?></span></p>
Then you could target the date with css:
.single .my-post-date {
display:none;
}
Whether that affects SEO is a topic of much debate.
There are also other ways to “hide” content. One is discussed in this article:
https://css-tricks.com/snippets/css/accessibilityseo-friendly-css-hiding/
