district: handle datetime strings

district/jekyll_import.py

@@ -150,9 +150,10 @@ def import_post(path, file_path, parent, title_suffix, dry_run, repo_name):
         if isinstance(meta_date, date):
             article.date = meta_date
         else:
-            article.date = meta["date"].split()[0]
+            parsed_date = meta["date"].split()[0]
+            article.date = parsed_date[0:10] if parsed_date else timezone.now().date()
     else:
-        article.date = timezone.now()
+        article.date = timezone.now().date()
 
     article.title = meta["title"]
     article.author = meta.get("author", "Česká pirátská strana")