diff --git a/newswire.py b/newswire.py
index 2842ba11..80c83b18 100644
--- a/newswire.py
+++ b/newswire.py
@@ -243,10 +243,13 @@ def xml2StrToDict(baseDir: str, domain: str, xmlStr: str,
 
         publishedDate = parseFeedDate(pubDate)
         if publishedDate:
+            pubDateStr = str(publishedDate) + '+00:00'
+            if not pubDateStr.endswith('+00:00'):
+                pubDateStr += '+00:00'
             postFilename = ''
             votesStatus = []
             addNewswireDictEntry(baseDir, domain,
-                                 result, str(publishedDate),
+                                 result, pubDateStr,
                                  title, link,
                                  votesStatus, postFilename,
                                  description, moderated, mirrored)