diff --git a/configure/CONFIG_SITE_ENV b/configure/CONFIG_SITE_ENV
index be6441ebb..75bf1a2f8 100644
--- a/configure/CONFIG_SITE_ENV
+++ b/configure/CONFIG_SITE_ENV
@@ -1,5 +1,5 @@
 #*************************************************************************
-# Copyright (c) 2009 UChicago Argonne LLC, as Operator of Argonne
+# Copyright (c) 2010 UChicago Argonne LLC, as Operator of Argonne
 #     National Laboratory.
 # Copyright (c) 2002 The Regents of the University of California, as
 #     Operator of Los Alamos National Laboratory.
@@ -30,19 +30,26 @@
 #	local timezone info for vxWorks and RTEMS IOCs.  The format is
 #	    <name>::<minutesWest>:<start daylight>:<end daylight>
 #	where the start and end are mmddhh - that is month,day,hour
-#	eg EPICS_TIMEZONE=CUS::360:033102:102802
+#	e.g. for ANL in 2010: EPICS_TIMEZONE=CUS::360:031402:110702
 #
-#	DST for 2010  US: Mar 14 - Nov 07
-#	              EU: Mar 28 - Oct 31
 #	DST for 2011  US: Mar 13 - Nov 06
 #	              EU: Mar 27 - Oct 30
+#	DST for 2012  US: Mar 11 - Nov 04
+#	              EU: Mar 25 - Oct 28
+#	DST for 2013  US: Mar 10 - Nov 03
+#	              EU: Mar 31 - Oct 27
+#	DST for 2014  US: Mar 09 - Nov 02
+#	              EU: Mar 30 - Oct 26
+#	DST for 2015  US: Mar 08 - Nov 01
+#	              EU: Mar 29 - Oct 25
 #	(see: http://www.worldtimezone.org/daylight.html)
-
-EPICS_TIMEZONE=CUS::360:031402:110702
-#EPICS_TIMEZONE=MET::-60:032802:103102
+#
+# These values are for 2011:
+EPICS_TIMEZONE=CUS::360:031302:110602
+#EPICS_TIMEZONE=MET::-60:032702:103002
 
 # EPICS_TS_NTP_INET
-#	NTP or Unix time server ip address.  Uses boot host if not set.
+#	NTP time server ip address.  Uses boot host if not set.
 EPICS_TS_NTP_INET=
 
 # IOC Shell: