diff --git a/src/allmydata/util/time_format.py b/src/allmydata/util/time_format.py
index 97d7c0341..0f8f2f387 100644
--- a/src/allmydata/util/time_format.py
+++ b/src/allmydata/util/time_format.py
@@ -1,9 +1,3 @@
-#  Copyright (c) 2001 Autonomous Zone Industries
-#  Copyright (c) 2002-2007 Bryce "Zooko" Wilcox-O'Hearn
-#  This file is licensed under the
-#    GNU Lesser General Public License v2.1.
-#    See the file COPYING or visit http://www.gnu.org/ for details.
-
 # ISO-8601:
 # http://www.cl.cam.ac.uk/~mgk25/iso-time.html