change date

function easel_display_post_calendar() {
		global $post, $wp_query;
		if (is_page()) return;
		if (easel_themeinfo('enable_post_calendar')) {
			$post_calendar = "<div class=\"post-calendar-date\"><div class=\"calendar-date\"><span>".get_the_time('M')."</span>".get_the_time('d')."</div></div>\r\n";
			echo apply_filters('easel_display_post_calendar', $post_calendar);
		}
	}

You can add (and edit) this to your CHILD THEMES functions.php file, or edit it directly in the functions/displaypost.php to suit your needs.