[surf]

Already done with following code

from calibre import strftime

    def parse_feeds(self):

        feeds = BasicNewsRecipe.parse_feeds(self)

        for currFeed in feeds:
            for a,currArticle in enumerate(currFeed.articles):
                 currArticle.text_summary =  ''
                 currArticle.formatted_date =  strftime('[%Y.%m.%d]',currArticle.date)
 
        return feeds

Thanks!