date format

you can change the date format in Settings > General
but from the image it looks like a bug on the theme, the problem could on one these files:
single.php
content.php
or functions.php
it depends on your theme.
check these file in order.
you need to be a bit familiar with php to fix it.

OK – i solved it. I comment some lines in template-tags.php

/*	if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) )
		$time_string .= '<time class="updated" datetime="%3$s">%4$s</time>';*/

The 2 dates are:
– publish date
– update/modify date

It should be styled differently. But we will simply remove the modify date on the next theme update.