Forgot to import time.
diff --git a/Lib/email/Utils.py b/Lib/email/Utils.py
index 93e0a83..58fd8da 100644
--- a/Lib/email/Utils.py
+++ b/Lib/email/Utils.py
@@ -4,6 +4,7 @@
 """Miscellaneous utilities.
 """
 
+import time
 import re
 
 from rfc822 import unquote, quote, parseaddr