My Plugin Code Show incorrect get_the_time

hello
i create a widget thats show papular and recent post but thats show all of the time 2013 08 02 whats problem?

function posts($sort = 'recent', $items = 3, $echo = TRUE, $bg_color = 'black')
{
	$return_html = '';

	if($sort == 'recent')
	{
		$posts = get_posts('numberposts='.$items.'&order=DESC&orderby=date&post_type=post&post_status=publish');
		$title = __('Recent Posts', THEMEDOMAIN);
	}
	else
	{
		global $wpdb;

		$query = "SELECT ID, post_title, post_content FROM {$wpdb->prefix}posts WHERE post_type = 'post' AND post_status= 'publish' ORDER BY comment_count DESC LIMIT 0,".$items;
		$posts = $wpdb->get_results($query);
		$title = 'Popular Posts';
	}

	if(!empty($posts))
	{

		$return_html.= '<h2 class="widgettitle">'.$title.'</h2>';
		$return_html.= '<ul class="posts blog '.$bg_color.'_wrapper">';

		$count_post = count($posts);

			foreach($posts as $post)
			{
				$image_thumb = get_post_meta($post->ID, 'blog_thumb_image_url', true);
				$return_html.= '
<li>';

				if(has_post_thumbnail($post->ID, 'large'))
				{
					$image_id = get_post_thumbnail_id($post->ID);
					$image_url = wp_get_attachment_image_src($image_id, 'thumbnail', true);

					$return_html.= '<a>ID).'"><img class="alignright frame" src="'.$image_url[0].'" alt="" /></a>';
				}

				$return_html.= '<strong class="title"><a>ID).'">'.$post->post_title.'</a><span class="post_attribute">'.get_the_time('F j, Y', $post->ID).'</span>';
				$return_html.= '</li>
';

			}	

		$return_html.= '';

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can anyone help me?