You can try the below given code for removing time and show only date in format of "Monday, 23 January 2017" instead of "Monday, 23 January 2017, 11:21 AM"
$by->date = date('l, d F Y',$entry->created );
Add the code in <your moodle>/theme/<your preferable theme>/renderers.php [which is recommended]
class theme_<your preferable theme>_core_blog_renderer extends core_blog_renderer {
/*overwrite render_blog_entry function here*/
public function render_blog_entry(blog_entry $entry) {
.....
/*use this code instead of $by->date = userdate($entry->created );
$by->date = date('l, d F Y',$entry->created );
}
}
or, you can directly change the code in <your moodle>/blog/renderer.php in function render_blog_entry.
Regards,
Purnendu