diff --git a/lib/nntp/tiny/message.py b/lib/nntp/tiny/message.py
index 933eb8e..5eea5b4 100644
--- a/lib/nntp/tiny/message.py
+++ b/lib/nntp/tiny/message.py
@@ -192,20 +192,16 @@ class Message(DatabaseTable):
 
     @property
     def created_on(self):
-        try:
-            value = self._cache.get('created_on')
+        value = self._cache.get('created_on')
 
-            if value is not None:
-                ret = datetime.datetime.fromisoformat(value)
-            else:
-                value = self.header('Date')
+        if value is not None:
+            return datetime.datetime.fromisoformat(value)
 
-                if value is not None:
-                    ret = parse_timestamp(value)
+        timestamp = self.header('Date')
 
-                    self._cache['created_on'] = str(ret)
-        except:
-            ret = datetime.datetime.fromtimestamp(0)
+        ret = parse_timestamp(timestamp)
+
+        self._cache['created_on'] = str(ret)
 
         return ret