diff --git a/django/core/db/typecasts.py b/django/core/db/typecasts.py
index e78eab0180..9be9062626 100644
--- a/django/core/db/typecasts.py
+++ b/django/core/db/typecasts.py
@@ -20,6 +20,7 @@ def typecast_timestamp(s): # does NOT store time zone information
     # "2005-07-29 15:48:00.590358-05"
     # "2005-07-29 09:56:00-05"
     if not s: return None
+    if not ' ' in s: return typecast_date(s)
     d, t = s.split()
     # Extract timezone information, if it exists. Currently we just throw
     # it away, but in the future we may make use of it.