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diff --git a/timezone/northamerica b/timezone/northamerica
index 73e2470e0b..6e755b04b3 100644
--- a/timezone/northamerica
+++ b/timezone/northamerica
@@ -1,13 +1,11 @@
-# @(#)northamerica	8.1
-# <pre>
-
+# @(#)northamerica	7.69
 # also includes Central America and the Caribbean
 
 # This data is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
 # tz@elsie.nci.nih.gov for general use in the future).
 
-# From Paul Eggert (1999-03-22):
+# From Paul Eggert <eggert@twinsun.com> (1999-03-22):
 # A reliable and entertaining source about time zones is
 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
 
@@ -26,16 +24,12 @@
 # His proposal was adopted by the railroads on 1883-11-18 at 12:00,
 # and the most of the country soon followed suit.
 
-# From Paul Eggert (2005-04-16):
-# That 1883 transition occurred at 12:00 new time, not at 12:00 old time.
-# See p 46 of David Prerau, Seize the daylight, Thunder's Mouth Press (2005).
-
-# From Paul Eggert (1995-12-19):
+# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
 # A good source for time zone historical data in the US is
 # Thomas G. Shanks, The American Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1991).
 # Make sure you have the errata sheet; the book is somewhat useless without it.
-# It is the source for most of the pre-1991 US and Puerto Rico entries below.
+# It is the source for the US and Puerto Rico entries below.
 
 # From Paul Eggert (2001-03-06):
 # Daylight Saving Time was first suggested as a joke by Benjamin Franklin
@@ -54,8 +48,7 @@
 #	to push people into bed earlier, and get them up earlier, to make
 #	them healthy, wealthy and wise in spite of themselves.
 #
-#	-- Robertson Davies, The diary of Samuel Marchbanks,
-#	   Clarke, Irwin (1947), XIX, Sunday
+#	-- Robertson Davies, The Diary of Samuel Marchbanks (1947), XIX, Sunday
 #
 # For more about the first ten years of DST in the United States, see
 # Robert Garland's <a href="http://www.clpgh.org/exhibit/dst.html">
@@ -85,7 +78,7 @@
 # Time' instead of the old familiar 'Eastern War Time.'  Peace is wonderful."
 # </a> (August 1945) by way of confirmation.
 
-# From Joseph Gallant citing
+# From Joseph Gallant <notquite@hotmail.com>, citing
 # George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):
 # At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set
 # to switch to London for Attlee's address, but the American people
@@ -112,46 +105,21 @@
 #
 # He had scored a 20-second scoop on other broadcasters.
 
-# From Arthur David Olson (2005-08-22):
-# Paul has been careful to use the "US" rules only in those locations
-# that are part of the United States; this reflects the real scope of
-# U.S. government action.  So even though the "US" rules have changed
-# in the latest release, other countries won't be affected.
-
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	US	1918	1919	-	Mar	lastSun	2:00	1:00	D
 Rule	US	1918	1919	-	Oct	lastSun	2:00	0	S
 Rule	US	1942	only	-	Feb	9	2:00	1:00	W # War
 Rule	US	1945	only	-	Aug	14	23:00u	1:00	P # Peace
 Rule	US	1945	only	-	Sep	30	2:00	0	S
-Rule	US	1967	2006	-	Oct	lastSun	2:00	0	S
+Rule	US	1967	max	-	Oct	lastSun	2:00	0	S
 Rule	US	1967	1973	-	Apr	lastSun	2:00	1:00	D
 Rule	US	1974	only	-	Jan	6	2:00	1:00	D
 Rule	US	1975	only	-	Feb	23	2:00	1:00	D
 Rule	US	1976	1986	-	Apr	lastSun	2:00	1:00	D
-Rule	US	1987	2006	-	Apr	Sun>=1	2:00	1:00	D
-Rule	US	2007	max	-	Mar	Sun>=8	2:00	1:00	D
-Rule	US	2007	max	-	Nov	Sun>=1	2:00	0	S
-
-# From Arthur David Olson, 2005-12-19
-# We generate the files specified below to guard against old files with
-# obsolete information being left in the time zone binary directory.
-# We limit the list to names that have appeared in previous versions of
-# this time zone package.
-# We do these as separate Zones rather than as Links to avoid problems if
-# a particular place changes whether it observes DST.
-# We put these specifications here in the northamerica file both to
-# increase the chances that they'll actually get compiled and to
-# avoid the need to duplicate the US rules in another file.
-
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	EST		 -5:00	-	EST
-Zone	MST		 -7:00	-	MST
-Zone	HST		-10:00	-	HST
-Zone	EST5EDT		 -5:00	US	E%sT
-Zone	CST6CDT		 -6:00	US	C%sT
-Zone	MST7MDT		 -7:00	US	M%sT
-Zone	PST8PDT		 -8:00	US	P%sT
+Rule	US	1987	max	-	Apr	Sun>=1	2:00	1:00	D
+# <a href="http://thomas.loc.gov/cgi-bin/bdquery/z?d106:h.r.00177:">
+# H.R.177
+# </a> (introduced 1999-01-06) would change April to March in the above rule.
 
 # From Bob Devine (1988-01-28):
 # ...Alaska (and Hawaii) had the timezone names changed in 1967.
@@ -229,53 +197,17 @@ Zone	PST8PDT		 -8:00	US	P%sT
 # Public law 106-564 (2000-12-23) introduced the abbreviation
 # "Chamorro Standard Time" for time in Guam and the Northern Marianas.
 # See the file "australasia".
- 
-# From Arthur David Olson, 2005-08-09
-# The following was signed into law on 2005-08-08.
-#
-# H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.
-#   (a) Amendment- Section 3(a) of the Uniform Time Act of 1966 (15
-#   U.S.C. 260a(a)) is amended--
-#     (1) by striking `first Sunday of April' and inserting `second
-#     Sunday of March'; and
-#     (2) by striking `last Sunday of October' and inserting `first
-#     Sunday of November'.
-#   (b) Effective Date- Subsection (a) shall take effect 1 year after the
-#   date of enactment of this Act or March 1, 2007, whichever is later.
-#   (c) Report to Congress- Not later than 9 months after the effective
-#   date stated in subsection (b), the Secretary shall report to Congress
-#   on the impact of this section on energy consumption in the United
-#   States.
-#   (d) Right to Revert- Congress retains the right to revert the
-#   Daylight Saving Time back to the 2005 time schedules once the
-#   Department study is complete.
+
 
 # US eastern time, represented by New York
 
 # Connecticut, Delaware, District of Columbia, most of Florida,
-# Georgia, southeast Indiana (Dearborn and Ohio counties), eastern Kentucky
-# (except America/Kentucky/Louisville below), Maine, Maryland, Massachusetts,
+# Georgia, southeast Indiana (Clark, Dearborn, Floyd, Harrison, and
+# Ohio counties), eastern Kentucky, Maine, Maryland, Massachusetts,
 # New Hampshire, New Jersey, New York, North Carolina, Ohio,
 # Pennsylvania, Rhode Island, South Carolina, eastern Tennessee,
 # Vermont, Virginia, West Virginia
 
-# From Dave Cantor (2004-11-02):
-# Early this summer I had the occasion to visit the Mount Washington
-# Observatory weather station atop (of course!) Mount Washington [, NH]....
-# One of the staff members said that the station was on Eastern Standard Time
-# and didn't change their clocks for Daylight Saving ... so that their
-# reports will always have times which are 5 hours behind UTC.
-
-# From Paul Eggert (2005-08-26):
-# According to today's Huntsville Times
-# <http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1>
-# a few towns on Alabama's "eastern border with Georgia, such as Phenix City
-# in Russell County, Lanett in Chambers County and some towns in Lee County,
-# set their watches and clocks on Eastern time."  It quotes H.H. "Bubba"
-# Roberts, city administrator in Phenix City. as saying "We are in the Central
-# time zone, but we do go by the Eastern time zone because so many people work
-# in Columbus." 
-
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	NYC	1920	only	-	Mar	lastSun	2:00	1:00	D
 Rule	NYC	1920	only	-	Oct	lastSun	2:00	0	S
@@ -283,7 +215,7 @@ Rule	NYC	1921	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	NYC	1921	1954	-	Sep	lastSun	2:00	0	S
 Rule	NYC	1955	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:03:58
+Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:00
 			-5:00	US	E%sT	1920
 			-5:00	NYC	E%sT	1942
 			-5:00	US	E%sT	1946
@@ -309,7 +241,7 @@ Rule	Chicago	1922	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	Chicago	1922	1954	-	Sep	lastSun	2:00	0	S
 Rule	Chicago	1955	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:09:24
+Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1920
 			-6:00	Chicago	C%sT	1936 Mar  1 2:00
 			-5:00	-	EST	1936 Nov 15 2:00
@@ -318,17 +250,9 @@ Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:09:24
 			-6:00	Chicago	C%sT	1967
 			-6:00	US	C%sT
 # Oliver County, ND switched from mountain to central time on 1992-10-25.
-Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:14:48
+Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:00
 			-7:00	US	M%sT	1992 Oct 25 02:00
 			-6:00	US	C%sT
-# From Paul Eggert (2006-01-20):
-# The following is not implemented yet.
-# What is the most populous city in that area?
-# From http://www.statoids.com/tus.html (2006-01-20):
-# 2003-10-26 02:00: All of Morton County, ND, and the part of Sioux
-# County, ND east of ND route 31 moved from MT to CT.  (The area
-# around Fort Yates in Sioux County and the area around Mandan in
-# Morton County were already in CT.)
 
 # US mountain time, represented by Denver
 #
@@ -345,7 +269,7 @@ Rule	Denver	1921	only	-	May	22	2:00	0	S
 Rule	Denver	1965	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	Denver	1965	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 12:00:04
+Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 12:00
 			-7:00	US	M%sT	1920
 			-7:00	Denver	M%sT	1942
 			-7:00	US	M%sT	1946
@@ -365,7 +289,7 @@ Rule	CA	1950	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	CA	1950	1961	-	Sep	lastSun	2:00	0	S
 Rule	CA	1962	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:07:02
+Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:00
 			-8:00	US	P%sT	1946
 			-8:00	CA	P%sT	1967
 			-8:00	US	P%sT
@@ -431,26 +355,10 @@ Zone America/Adak	 12:13:21 -	LMT	1867 Oct 18
 			-11:00	US	B%sT	1983 Oct 30 2:00
 			-10:00	US	AH%sT	1983 Nov 30
 			-10:00	US	HA%sT
-# The following switches don't quite make our 1970 cutoff.
-#
 # Shanks writes that part of southwest Alaska (e.g. Aniak)
 # switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
 # and another part (e.g. Akiak) made the same switch five weeks later.
-#
-# From David Flater (2004-11-09):
-# In e-mail, 2004-11-02, Ray Hudson, historian/liaison to the Unalaska
-# Historic Preservation Commission, provided this information, which
-# suggests that Unalaska deviated from statutory time from early 1967
-# possibly until 1983:
-#
-#  Minutes of the Unalaska City Council Meeting, January 10, 1967:
-#  "Except for St. Paul and Akutan, Unalaska is the only important
-#  location not on Alaska Standard Time.  The following resolution was
-#  made by William Robinson and seconded by Henry Swanson:  Be it
-#  resolved that the City of Unalaska hereby goes to Alaska Standard
-#  Time as of midnight Friday, January 13, 1967 (1 A.M. Saturday,
-#  January 14, Alaska Standard Time.)  This resolution was passed with
-#  three votes for and one against."
+# These switches don't quite make our 1970 cutoff.
 
 # Hawaii
 #
@@ -492,7 +400,7 @@ Zone Pacific/Honolulu	-10:31:26 -	LMT	1900 Jan  1 12:00
 # Shanks says the 1944 experiment came to an end on 1944-03-17.
 # Go with the Arizona State Library instead.
 
-Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 11:31:42
+Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 12:00
 			-7:00	US	M%sT	1944 Jan  1 00:01
 			-7:00	-	MST	1944 Apr  1 00:01
 			-7:00	US	M%sT	1944 Oct  1 00:01
@@ -514,9 +422,9 @@ Link America/Denver America/Shiprock
 # Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power,
 # Teton, Twin Falls, Valley, Washington counties) and eastern Oregon
 # switched four weeks late in 1974.
-#
+# 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:15:11
+Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:00
 			-8:00	US	P%sT	1923 May 13 2:00
 			-7:00	US	M%sT	1974
 			-7:00	-	MST	1974 Feb  3 2:00
@@ -527,55 +435,40 @@ Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:15:11
 # For a map of Indiana's time zone regions, see:
 # <a href="http://www.mccsc.edu/time.html">
 # What time is it in Indiana?
-# </a> (2005-10-30)
-#
-# From Paul Eggert (2006-01-20):
-# Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
-# with the following exceptions:
-#
-# - Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
-#   Vandenburgh, and Warrick counties have been like America/Chicago.
-#
-# - Dearborn and Ohio counties have been like America/New_York.
+# </a> (1999-04-06)
 #
-# - Clark, Floyd, and Harrison counties have been like
-#   America/Kentucky/Louisville.
-#
-# - Daviess, Dubois, Knox, Martin, Perry, and Pulaski counties
-#   have been like America/Indiana/Vincennes.
-#
-# - Crawford, Pike, Starke, and Switzerland counties have their own time zone
-#   histories as noted below.
-#
-# Shanks partitioned Indiana into 345 regions, each with its own time history,
-# and wrote ``Even newspaper reports present contradictory information.''
+# From Paul Eggert (1995-12-19):
+# Indiana generally observes either EST all year, or CST/CDT,
+# but areas near Cincinnati and Louisville use those cities' timekeeping
+# and in 1969 and 1970 the whole state observed daylight time;
+# and there are other exceptions as noted below.
+# Shanks partitions Indiana into 345 regions, each with its own time history,
+# and writes ``Even newspaper reports present contradictory information.''
 # Fortunately, most of the complexity occurred before our cutoff date of 1970.
 #
+# Since 1970, EST-only Indiana has been like America/Indianapolis,
+# with exceptions noted below for Crawford, Starke, and Switzerland counties.
+# The parts of Indiana not listed below have been like America/Chicago,
+# America/Louisville, or America/New_York.
+#
 # Other than Indianapolis, the Indiana place names are so nondescript
 # that they would be ambiguous if we left them at the `America' level.
 # So we reluctantly put them all in a subdirectory `America/Indiana'.
+#
+# Most of EST-only Indiana last observed DST in 1970.
 
-# From Paul Eggert (2005-08-16):
-# http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006.
-
-# From Deborah Goldsmith (2006-01-18):
-# http://dmses.dot.gov/docimages/pdf95/382329_web.pdf
-# From Paul Eggert (2006-01-20):
-# It says "DOT is relocating the time zone boundary in Indiana to move Starke,
-# Pulaski, Knox, Daviess, Martin, Pike, Dubois, and Perry Counties from the
-# Eastern Time Zone to the Central Time Zone.... The effective date of
-# this rule is 2:OO a.m. EST Sunday, April 2, 2006, which is the
-# changeover date from standard time to Daylight Saving Time."
-# Strictly speaking, this means the affected counties will change their
-# clocks twice that night, but this obviously is in error.  The intent
-# is that 01:59:59 EST be followed by 02:00:00 CDT.
+# From Paul Eggert (2001-03-06), following a tip by Markus Kuhn:
+# Pam Belluck reported in the New York Times (2001-01-31) that the
+# Indiana Legislature is considering a bill to adopt DST statewide.
+# Her article mentioned Vevay, whose post office observes a different
+# time zone from Danner's Hardware across the street.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule Indianapolis 1941	only	-	Jun	22	2:00	1:00	D
 Rule Indianapolis 1941	1954	-	Sep	lastSun	2:00	0	S
 Rule Indianapolis 1946	1954	-	Apr	lastSun	2:00	1:00	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22
+Zone America/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:00
 			-6:00	US	C%sT	1920
 			-6:00 Indianapolis C%sT	1942
 			-6:00	US	C%sT	1946
@@ -584,66 +477,27 @@ Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22
 			-6:00	-	CST	1958 Apr 27 2:00
 			-5:00	-	EST	1969
 			-5:00	US	E%sT	1971
-			-5:00	-	EST	2006
-			-5:00	US	E%sT
+			-5:00	-	EST
+Link America/Indianapolis America/Indiana/Indianapolis
 #
-# Eastern Crawford County, Indiana, left its clocks alone in 1974,
-# as well as from 1976 through 2005.
+# Part of Crawford County, Indiana, last observed DST in 1975,
+# and left its clocks alone in 1974.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	Marengo	1951	only	-	Apr	lastSun	2:00	1:00	D
 Rule	Marengo	1951	only	-	Sep	lastSun	2:00	0	S
 Rule	Marengo	1954	1960	-	Apr	lastSun	2:00	1:00	D
 Rule	Marengo	1954	1960	-	Sep	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Marengo -5:45:23 -	LMT	1883 Nov 18 12:14:37
+Zone America/Indiana/Marengo -5:45:23 -	LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1951
 			-6:00	Marengo	C%sT	1961 Apr 30 2:00
 			-5:00	-	EST	1969
 			-5:00	US	E%sT	1974 Jan  6 2:00
 			-6:00	1:00	CDT	1974 Oct 27 2:00
 			-5:00	US	E%sT	1976
-			-5:00	-	EST	2006
-			-5:00	US	E%sT
-#
-# Daviess, Dubois, Knox, Martin, Perry, and Pulaski Counties, Indiana,
-# switched from eastern to central time in April 2006.
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
-Rule Vincennes	1946	only	-	Apr	lastSun	2:00	1:00	D
-Rule Vincennes	1946	only	-	Sep	lastSun	2:00	0	S
-Rule Vincennes	1953	1954	-	Apr	lastSun	2:00	1:00	D
-Rule Vincennes	1953	1959	-	Sep	lastSun	2:00	0	S
-Rule Vincennes	1955	only	-	May	 1	0:00	1:00	D
-Rule Vincennes	1956	1963	-	Apr	lastSun	2:00	1:00	D
-Rule Vincennes	1960	only	-	Oct	lastSun	2:00	0	S
-Rule Vincennes	1961	only	-	Sep	lastSun	2:00	0	S
-Rule Vincennes	1962	1963	-	Oct	lastSun	2:00	0	S
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Vincennes -5:50:07 - LMT	1883 Nov 18 12:09:53
-			-6:00	US	C%sT	1946
-			-6:00 Vincennes	C%sT	1964 Apr 26 2:00
-			-5:00	-	EST	1969
-			-5:00	US	E%sT	1971
-			-5:00	-	EST	2006 Apr  2 2:00
-			-6:00	US	C%sT
-# 
-# Pike County, Indiana moved from central to eastern time in 1977,
-# then switched back in 2006.
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
-Rule	Pike	1955	only	-	May	 1	0:00	1:00	D
-Rule	Pike	1955	1960	-	Sep	lastSun	2:00	0	S
-Rule	Pike	1956	1964	-	Apr	lastSun	2:00	1:00	D
-Rule	Pike	1961	1964	-	Oct	lastSun	2:00	0	S
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Petersburg -5:49:07 - LMT	1883 Nov 18 12:10:53
-			-6:00	US	C%sT	1955
-			-6:00	Pike	C%sT	1965 Apr 25 2:00
-			-5:00	-	EST	1966 Oct 30 2:00
-			-6:00	US	C%sT	1977 Oct 30 2:00
-			-5:00	-	EST	2006 Apr  2 2:00
-			-6:00	US	C%sT
+			-5:00	-	EST
 #
-# Starke County, Indiana moved from central to eastern time in 1991,
-# then switched back in 2006.
+# Starke County, Indiana
 # From Arthur David Olson (1991-10-28):
 # An article on page A3 of the Sunday, 1991-10-27 Washington Post
 # notes that Starke County switched from Central time to Eastern time as of
@@ -655,25 +509,23 @@ Rule	Starke	1955	1956	-	Oct	lastSun	2:00	0	S
 Rule	Starke	1957	1958	-	Sep	lastSun	2:00	0	S
 Rule	Starke	1959	1961	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Knox -5:46:30 -	LMT	1883 Nov 18 12:13:30
+Zone America/Indiana/Knox -5:46:30 -	LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1947
 			-6:00	Starke	C%sT	1962 Apr 29 2:00
 			-5:00	-	EST	1963 Oct 27 2:00
 			-6:00	US	C%sT	1991 Oct 27 2:00
-			-5:00	-	EST	2006 Apr  2 2:00
-			-6:00	US	C%sT
+			-5:00	-	EST
 #
-# Switzerland County, Indiana, did not observe DST from 1973 through 2005.
+# Switzerland County, Indiana, last observed DST in 1972.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Vevay -5:40:16 -	LMT	1883 Nov 18 12:19:44
+Zone America/Indiana/Vevay -5:40:16 -	LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1954 Apr 25 2:00
 			-5:00	-	EST	1969
 			-5:00	US	E%sT	1973
-			-5:00	-	EST	2006
-			-5:00	US	E%sT
+			-5:00	-	EST
 
 # Part of Kentucky left its clocks alone in 1974.
-# This also includes Clark, Floyd, and Harrison counties in Indiana.
+# This also includes a part of Indiana immediately adjacent to Louisville.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule Louisville	1921	only	-	May	1	2:00	1:00	D
 Rule Louisville	1921	only	-	Sep	1	2:00	0	S
@@ -683,7 +535,7 @@ Rule Louisville	1946	only	-	Jun	2	2:00	0	S
 Rule Louisville	1950	1955	-	Sep	lastSun	2:00	0	S
 Rule Louisville	1956	1960	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Kentucky/Louisville -5:43:02 -	LMT	1883 Nov 18 12:16:58
+Zone America/Louisville	-5:43:02 -	LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1921
 			-6:00 Louisville C%sT	1942
 			-6:00	US	C%sT	1946
@@ -692,8 +544,9 @@ Zone America/Kentucky/Louisville -5:43:02 -	LMT	1883 Nov 18 12:16:58
 			-5:00	US	E%sT	1974 Jan  6 2:00
 			-6:00	1:00	CDT	1974 Oct 27 2:00
 			-5:00	US	E%sT
+Link America/Louisville America/Kentucky/Louisville
 #
-# Wayne County, Kentucky
+# Wayne, Clinton, and Russell Counties, Kentucky
 #
 # From
 # <a href="http://www.lake-cumberland.com/life/archive/news990129time.shtml">
@@ -719,7 +572,7 @@ Zone America/Kentucky/Louisville -5:43:02 -	LMT	1883 Nov 18 12:16:58
 # Federal Register 65, 160 (2000-08-17), page 50154-50158.
 # </a>
 #
-Zone America/Kentucky/Monticello -5:39:24 - LMT	1883 Nov 18 12:20:36
+Zone America/Kentucky/Monticello -5:39:24 - LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1946
 			-6:00	-	CST	1968
 			-6:00	US	C%sT	2000 Oct 29  2:00
@@ -790,8 +643,7 @@ Zone America/Detroit	-5:32:11 -	LMT	1905
 			-5:00	-	EST	1975 Apr 27 2:00
 			-5:00	US	E%sT
 #
-# Dickinson, Gogebic, Iron, and Menominee Counties, Michigan,
-# switched from EST to CST/CDT in 1973.
+# The Michigan border with Wisconsin switched from EST to CST/CDT in 1973.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule Menominee	1946	only	-	Apr	lastSun	2:00	1:00	D
 Rule Menominee	1946	only	-	Sep	lastSun	2:00	0	S
@@ -815,10 +667,21 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 # _Los Angeles Times_ (1998-11-10), A1, A10; it cites
 # Jimmy Skaggs, _The Great Guano Rush_ (1994).
 
+# Old names, for S5 users
+
+# Link	LINK-FROM		LINK-TO
+Link	America/New_York	EST5EDT
+Link	America/Chicago		CST6CDT
+Link	America/Denver		MST7MDT
+Link	America/Los_Angeles	PST8PDT
+Link	America/Indianapolis	EST
+Link	America/Phoenix		MST
+Link	Pacific/Honolulu	HST
+
 ################################################################################
 
 
-# From Paul Eggert (1999-10-29):
+# From Paul Eggert <eggert@twinsun.com> (1999-10-29):
 # A good source for time zone historical data outside the US is
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
@@ -846,7 +709,7 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 
 # Canada
 
-# From Alain LaBont<e'> (1994-11-14):
+# From Alain LaBont<e'> <ALB@immedia.ca> (1994-11-14):
 # I post here the time zone abbreviations standardized in Canada
 # for both English and French in the CAN/CSA-Z234.4-89 standard....
 #
@@ -875,42 +738,23 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 #	T: de Terre-Neuve
 #	Y: du Yukon		Yukon
 #
-# From Paul Eggert (1994-11-22):
+# From Paul Eggert <eggert@twinsun.com> (1994-11-22):
 # Alas, this sort of thing must be handled by localization software.
 
 # Unless otherwise specified, the data for Canada are all from Shanks.
 
-# From Paul Eggert (2005-12-21):
+# From Paul Eggert (2000-10-02):
 # H. David Matthews and Mary Vincent's map
-# <a href="http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp">
+# <a href="http://www.canadiangeographic.ca/SO98/geomap.htm">
 # "It's about TIME", _Canadian Geographic_ (September-October 1998)
 # </a> contains detailed boundaries for regions observing nonstandard
 # time and daylight saving time arrangements in Canada circa 1998.
 #
-# INMS, the Institute for National Measurement Standards in Ottawa, has <a
-# href="http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php">
+# INMS, the Institute for National Measurement Standards in Ottawa, has
+# <a href="http://www.nrc.ca/inms/time/tze.html">
 # information about standard and daylight saving time zones in Canada.
 # </a> (updated periodically).
 # Its unofficial information is often taken from Matthews and Vincent.
-#
-# CBC News reported that Ontario and Manitoba have announced plans to
-# follow the US change, and that Nova Scotia is considering it; see
-# <http://www.cbc.ca/news/background/daylightsavingtime/> (2005-10-21).
-# CBC news also reported that Prince Edward Island is the first
-# province in Atlantic Canada to follow the US change, and that Quebec
-# had agreed; see <http://www.cbc.ca/pei/story/pe_daylight_20051207.html>
-# (2005-12-07).
-#
-# To reflect all this, the Canada and Winn rules have been adjusted to
-# agree with the 2007 US change.  This means we assume most of Canada
-# will fall into line.  However, Alberta, British Columbia,
-# Newfoundland, Northwest Territories, and Yukon already have separate
-# rules in our database, so for now we'll leave them alone, which
-# means that we currently assume these regions will not change their
-# rules and will disagree with the US starting in 2007.  This
-# assumption is probably incorrect, with the possible exception of
-# Newfoundland.  We plan to adjust the Edm, Vanc, StJohns, and NT_YK
-# rules as the corresponding provinces make their announcements.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Canada	1918	only	-	Apr	14	2:00	1:00	D
@@ -919,10 +763,8 @@ Rule	Canada	1942	only	-	Feb	 9	2:00	1:00	W # War
 Rule	Canada	1945	only	-	Aug	14	23:00u	1:00	P # Peace
 Rule	Canada	1945	only	-	Sep	30	2:00	0	S
 Rule	Canada	1974	1986	-	Apr	lastSun	2:00	1:00	D
-Rule	Canada	1974	2006	-	Oct	lastSun	2:00	0	S
-Rule	Canada	1987	2006	-	Apr	Sun>=1	2:00	1:00	D
-Rule	Canada	2007	max	-	Mar	Sun>=8	2:00	1:00	D
-Rule	Canada	2007	max	-	Nov	Sun>=1	2:00	0	S
+Rule	Canada	1974	max	-	Oct	lastSun	2:00	0	S
+Rule	Canada	1987	max	-	Apr	Sun>=1	2:00	1:00	D
 
 
 # Newfoundland (and far southeast Labrador)
@@ -987,7 +829,7 @@ Zone America/Goose_Bay	-4:01:40 -	LMT	1884 # Happy Valley-Goose Bay
 			-4:00	StJohns	A%sT
 
 
-# west Labrador, Nova Scotia, Prince Edward I
+# west Labrador, New Brunswick, Nova Scotia, Prince Edward I
 
 # From Paul Eggert (1996-06-12):
 # Shanks writes that since 1970 most of this region has been like Halifax.
@@ -996,48 +838,53 @@ Zone America/Goose_Bay	-4:01:40 -	LMT	1884 # Happy Valley-Goose Bay
 # Shanks also writes that Liverpool, NS was the only town in Canada to observe
 # DST in 1971 but not 1970; for now we'll assume this is a typo.
 
+# From Paul Eggert (2000-10-02):
+# INMS (2000-09-12) says that, since 1988 at least, New Brunswick switches
+# at 00:01 local time.  FIXME: verify and create a new Zone for this.
+
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Halifax	1916	only	-	Apr	 1	0:00	1:00	D
-Rule	Halifax	1916	only	-	Oct	 1	0:00	0	S
-Rule	Halifax	1920	only	-	May	 9	0:00	1:00	D
-Rule	Halifax	1920	only	-	Aug	29	0:00	0	S
-Rule	Halifax	1921	only	-	May	 6	0:00	1:00	D
-Rule	Halifax	1921	1922	-	Sep	 5	0:00	0	S
-Rule	Halifax	1922	only	-	Apr	30	0:00	1:00	D
-Rule	Halifax	1923	1925	-	May	Sun>=1	0:00	1:00	D
-Rule	Halifax	1923	only	-	Sep	 4	0:00	0	S
-Rule	Halifax	1924	only	-	Sep	15	0:00	0	S
-Rule	Halifax	1925	only	-	Sep	28	0:00	0	S
-Rule	Halifax	1926	only	-	May	16	0:00	1:00	D
-Rule	Halifax	1926	only	-	Sep	13	0:00	0	S
-Rule	Halifax	1927	only	-	May	 1	0:00	1:00	D
-Rule	Halifax	1927	only	-	Sep	26	0:00	0	S
-Rule	Halifax	1928	1931	-	May	Sun>=8	0:00	1:00	D
-Rule	Halifax	1928	only	-	Sep	 9	0:00	0	S
-Rule	Halifax	1929	only	-	Sep	 3	0:00	0	S
-Rule	Halifax	1930	only	-	Sep	15	0:00	0	S
-Rule	Halifax	1931	1932	-	Sep	Mon>=24	0:00	0	S
-Rule	Halifax	1932	only	-	May	 1	0:00	1:00	D
-Rule	Halifax	1933	only	-	Apr	30	0:00	1:00	D
-Rule	Halifax	1933	only	-	Oct	 2	0:00	0	S
-Rule	Halifax	1934	only	-	May	20	0:00	1:00	D
-Rule	Halifax	1934	only	-	Sep	16	0:00	0	S
-Rule	Halifax	1935	only	-	Jun	 2	0:00	1:00	D
-Rule	Halifax	1935	only	-	Sep	30	0:00	0	S
-Rule	Halifax	1936	only	-	Jun	 1	0:00	1:00	D
-Rule	Halifax	1936	only	-	Sep	14	0:00	0	S
-Rule	Halifax	1937	1938	-	May	Sun>=1	0:00	1:00	D
-Rule	Halifax	1937	1941	-	Sep	Mon>=24	0:00	0	S
-Rule	Halifax	1939	only	-	May	28	0:00	1:00	D
-Rule	Halifax	1940	1941	-	May	Sun>=1	0:00	1:00	D
-Rule	Halifax	1946	1949	-	Apr	lastSun	2:00	1:00	D
-Rule	Halifax	1946	1949	-	Sep	lastSun	2:00	0	S
-Rule	Halifax	1951	1954	-	Apr	lastSun	2:00	1:00	D
-Rule	Halifax	1951	1954	-	Sep	lastSun	2:00	0	S
-Rule	Halifax	1956	1959	-	Apr	lastSun	2:00	1:00	D
-Rule	Halifax	1956	1959	-	Sep	lastSun	2:00	0	S
-Rule	Halifax	1962	1973	-	Apr	lastSun	2:00	1:00	D
-Rule	Halifax	1962	1973	-	Oct	lastSun	2:00	0	S
+Rule Halifax	1916	only	-	Apr	 1	0:00	1:00	D
+Rule Halifax	1916	only	-	Oct	 1	0:00	0	S
+Rule Halifax	1920	only	-	May	 9	0:00	1:00	D
+Rule Halifax	1920	only	-	Aug	29	0:00	0	S
+Rule Halifax	1921	only	-	May	 6	0:00	1:00	D
+Rule Halifax	1921	1922	-	Sep	 5	0:00	0	S
+Rule Halifax	1922	only	-	Apr	30	0:00	1:00	D
+Rule Halifax	1923	1925	-	May	Sun>=1	0:00	1:00	D
+Rule Halifax	1923	only	-	Sep	 4	0:00	0	S
+Rule Halifax	1924	only	-	Sep	15	0:00	0	S
+Rule Halifax	1925	only	-	Sep	28	0:00	0	S
+Rule Halifax	1926	only	-	May	16	0:00	1:00	D
+Rule Halifax	1926	only	-	Sep	13	0:00	0	S
+Rule Halifax	1927	only	-	May	 1	0:00	1:00	D
+Rule Halifax	1927	only	-	Sep	26	0:00	0	S
+Rule Halifax	1928	1931	-	May	Sun>=8	0:00	1:00	D
+Rule Halifax	1928	only	-	Sep	 9	0:00	0	S
+Rule Halifax	1929	only	-	Sep	 3	0:00	0	S
+Rule Halifax	1930	only	-	Sep	15	0:00	0	S
+Rule Halifax	1931	1932	-	Sep	Mon>=24	0:00	0	S
+Rule Halifax	1932	only	-	May	 1	0:00	1:00	D
+Rule Halifax	1933	only	-	Apr	30	0:00	1:00	D
+Rule Halifax	1933	only	-	Oct	 2	0:00	0	S
+Rule Halifax	1934	only	-	May	20	0:00	1:00	D
+Rule Halifax	1934	only	-	Sep	16	0:00	0	S
+Rule Halifax	1935	only	-	Jun	 2	0:00	1:00	D
+Rule Halifax	1935	only	-	Sep	30	0:00	0	S
+Rule Halifax	1936	only	-	Jun	 1	0:00	1:00	D
+Rule Halifax	1936	only	-	Sep	14	0:00	0	S
+Rule Halifax	1937	1938	-	May	Sun>=1	0:00	1:00	D
+Rule Halifax	1937	1941	-	Sep	Mon>=24	0:00	0	S
+Rule Halifax	1939	only	-	May	28	0:00	1:00	D
+Rule Halifax	1940	1941	-	May	Sun>=1	0:00	1:00	D
+Rule Halifax	1946	1949	-	Sep	lastSun	2:00	0	S
+Rule Halifax	1946	1949	-	Apr	lastSun	2:00	1:00	D
+Rule Halifax	1951	1954	-	Sep	lastSun	2:00	0	S
+Rule Halifax	1951	1954	-	Apr	lastSun	2:00	1:00	D
+Rule Halifax	1956	1959	-	Sep	lastSun	2:00	0	S
+Rule Halifax	1956	1959	-	Apr	lastSun	2:00	1:00	D
+Rule Halifax	1962	1973	-	Apr	lastSun	2:00	1:00	D
+Rule Halifax	1962	1973	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Halifax	-4:14:24 -	LMT	1902 Jun 15
 			-4:00	Halifax	A%sT	1918
@@ -1053,43 +900,6 @@ Zone America/Glace_Bay	-3:59:48 -	LMT	1902 Jun 15
 			-4:00	Halifax	A%sT	1974
 			-4:00	Canada	A%sT
 
-# New Brunswick
-
-# From Paul Eggert (2006-01-20):
-# New Brunswick's Time Definition Act
-# <http://www.gnb.ca/0062/PDF-acts/t-06.pdf> says they change at 00:01, and
-# <http://www.canlii.org/nb/laws/sta/t-6/20030127/whole.html> makes it
-# clear that this has been the case since at least 1993.
-# For now, assume it started in 1993.  The Office of the Premier announced
-# <http://www.gnb.ca/cnb/news/pre/2005e1737pr.htm> (2005-12-23)
-# that they will bring forward proposed amendments to harmonize with the US;
-# for now assume that this will happen, but they'll still switch at 00:01.
-
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Moncton	1933	1935	-	Jun	Sun>=8	1:00	1:00	D
-Rule	Moncton	1933	1935	-	Sep	Sun>=8	1:00	0	S
-Rule	Moncton	1936	1938	-	Jun	Sun>=1	1:00	1:00	D
-Rule	Moncton	1936	1938	-	Sep	Sun>=1	1:00	0	S
-Rule	Moncton	1939	only	-	May	27	1:00	1:00	D
-Rule	Moncton	1939	1941	-	Sep	Sat>=21	1:00	0	S
-Rule	Moncton	1940	only	-	May	19	1:00	1:00	D
-Rule	Moncton	1941	only	-	May	 4	1:00	1:00	D
-Rule	Moncton	1946	1972	-	Apr	lastSun	2:00	1:00	D
-Rule	Moncton	1946	1956	-	Sep	lastSun	2:00	0	S
-Rule	Moncton	1956	1972	-	Oct	lastSun	2:00	0	S
-Rule	Moncton	1993	2006	-	Apr	Sun>=1	0:01	1:00	D
-Rule	Moncton	1993	2006	-	Oct	lastSun	0:01	0	S
-Rule	Moncton	2007	max	-	Mar	Sun>=8	0:01	1:00	D
-Rule	Moncton	2007	max	-	Nov	Sun>=1	0:01	0	S
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
-			-5:00	-	EST	1902 Jun 15
-			-4:00	Canada	A%sT	1933
-			-4:00	Moncton	A%sT	1942
-			-4:00	Canada	A%sT	1946
-			-4:00	Moncton	A%sT	1973
-			-4:00	Canada	A%sT	1993
-			-4:00	Moncton	A%sT
 
 # Ontario, Quebec
 
@@ -1280,13 +1090,11 @@ Rule	Winn	1963	only	-	Apr	lastSun	2:00	1:00	D
 Rule	Winn	1963	only	-	Sep	22	2:00	0	S
 Rule	Winn	1966	1986	-	Apr	lastSun	2:00	1:00	D
 Rule	Winn	1966	1986	-	Oct	lastSun	2:00	0	S
-Rule	Winn	1987	2006	-	Apr	Sun>=1	2:00s	1:00	D
+Rule	Winn	1987	max	-	Apr	Sun>=1	2:00	1:00	D
 # From Paul Eggert (2000-10-02):
 # INMS (2000-09-12) says that, since 1988 at least, Manitoba switches from
 # DST at 03:00 local time.  For now, assume it started in 1987.
-Rule	Winn	1987	2006	-	Oct	lastSun	2:00s	0	S
-Rule	Winn	2007	max	-	Mar	Sun>=8	2:00s	1:00	D
-Rule	Winn	2007	max	-	Nov	Sun>=1	2:00s	0	S
+Rule	Winn	1987	max	-	Oct	lastSun	2:00s	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Winnipeg	-6:28:36 -	LMT	1887 Jul 16
 			-6:00	Winn	C%sT
@@ -1315,7 +1123,7 @@ Zone America/Winnipeg	-6:28:36 -	LMT	1887 Jul 16
 # Matthews and Vincent (1998) write that Denare Beach and Creighton
 # are like Winnipeg, in violation of Saskatchewan law.
 
-# From W. Jones (1992-11-06):
+# From W. Jones <jones@skdad.usask.ca> (1992-11-06):
 # The. . .below is based on information I got from our law library, the
 # provincial archives, and the provincial Community Services department.
 # A precise history would require digging through newspaper archives, and
@@ -1433,7 +1241,7 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 
 # From Paul Eggert (1999-10-29):
 # Dawson switched to PST in 1973.  Inuvik switched to MST in 1979.
-# Mathew Englander (1996-10-07) gives the following refs:
+# Mathew Englander <mathew@io.org> (1996-10-07) gives the following refs:
 #	* 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
 #	c. 7 defines Yukon standard time as UTC-9.  This is still valid;
 #	see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
@@ -1458,6 +1266,8 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 # </a> (1999) reports that Pangnirtung operates on eastern time,
 # and that Coral Harbour does not observe DST.  We don't know when
 # Pangnirtung switched to eastern time; we'll guess 1995.
+# We'll ignore the claim about Coral Harbour for now,
+# since we have no further info.
 
 # From Rives McDow (1999-11-08):
 # On October 31, when the rest of Nunavut went to Central time,
@@ -1532,23 +1342,6 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 # more.
 # [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).]
 
-# From Gwillim Law (2005-05-21):
-# According to maps at
-# http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SWE.jpg
-# http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SSE.jpg
-# (both dated 2003), and
-# http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp
-# (from a 1998 Canadian Geographic article), the de facto and de jure time
-# for Southampton Island (at the north end of Hudson Bay) is UTC-5 all year
-# round.  Using Google, it's easy to find other websites that confirm this.
-# I wasn't able to find how far back this time regimen goes, but since it
-# predates the creation of Nunavut, it probably goes back many years....
-# The Inuktitut name of Coral Harbour is Sallit, but it's rarely used.
-#
-# From Paul Eggert (2005-07-26):
-# For lack of better information, assume that Southampton Island observed
-# daylight saving only during wartime.
-
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	NT_YK	1918	only	-	Apr	14	2:00	1:00	D
 Rule	NT_YK	1918	only	-	Oct	27	2:00	0	S
@@ -1572,9 +1365,6 @@ Zone America/Iqaluit	-4:33:52 -	LMT	1884 # Frobisher Bay before 1987
 			-5:00	NT_YK	E%sT	1999 Oct 31 2:00
 			-6:00	Canada	C%sT	2000 Oct 29 2:00
 			-5:00	Canada	E%sT
-Zone America/Coral_Harbour -5:32:40 -	LMT	1884
-			-5:00	NT_YK	E%sT	1946
-			-5:00	-	EST
 Zone America/Rankin_Inlet -6:08:40 -	LMT	1884
 			-6:00	NT_YK	C%sT	2000 Oct 29 2:00
 			-5:00	-	EST	2001 Apr  1 3:00
@@ -1614,7 +1404,7 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # Shanks reports that Baja was at -8:00 in 1922/1923.
 # Shanks says the 1930 transition in Baja was 1930-11-16.
 # Shanks reports no DST during summer 1931.
-# Shanks reports a transition at 1932-03-30 23:00, not 1932-04-01.
+# Shanks reports a transition at 1032-03-30 23:00, not 1932-04-01.
 # Shanks does not report transitions for Baja in 1945 or 1948.
 # Shanks reports southern Mexico transitions on 1981-12-01, not 12-23.
 # Shanks says Quintana Roo switched to -6:00 on 1982-12-02, and to -5:00
@@ -1630,7 +1420,7 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # Shanks gives 1942-04-01 instead of 1942-04-24, and omits the 1981
 # and 1988 DST experiments.  Go with spin.com.mx.
 
-# From Alan Perry (1996-02-15):
+# From Alan Perry <alan.perry@eng.sun.com> (1996-02-15):
 # A guy from our Mexico subsidiary finally found the Presidential Decree
 # outlining the timezone changes in Mexico.
 #
@@ -1941,20 +1731,6 @@ Zone America/Costa_Rica	-5:36:20 -	LMT	1890		# San Jose
 # to DST--and one more hour on 1999-04-04--when the announcers will have
 # returned to Baltimore, which switches on that date.)
 
-# From Evert van der Veer via Steffen Thorsen (2004-10-28):
-# Cuba is not going back to standard time this year.
-# From Paul Eggert (2004-10-28):
-# http://www.granma.cu/ingles/2004/septiembre/juev30/41medid-i.html
-# says that it's due to a problem at the Antonio Guiteras
-# thermoelectric plant, and says "This October there will be no return
-# to normal hours (after daylight saving time)".
-# For now, let's assume that it's a one-year temporary measure.
-
-# From Carlos A. Carnero Delgado (2005-11-12):
-# This year (just like in 2004-2005) there's no change in time zone
-# adjustment in Cuba.  We will stay in daylight saving time:
-# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
-
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Cuba	1928	only	-	Jun	10	0:00	1:00	D
 Rule	Cuba	1928	only	-	Oct	10	0:00	0	S
@@ -1983,9 +1759,8 @@ Rule	Cuba	1991	1995	-	Oct	Sun>=8	0:00s	0	S
 Rule	Cuba	1996	only	-	Oct	 6	0:00s	0	S
 Rule	Cuba	1997	only	-	Oct	12	0:00s	0	S
 Rule	Cuba	1998	1999	-	Mar	lastSun	0:00s	1:00	D
-Rule	Cuba	1998	2003	-	Oct	lastSun	0:00s	0	S
+Rule	Cuba	1998	max	-	Oct	lastSun	0:00s	0	S
 Rule	Cuba	2000	max	-	Apr	Sun>=1	0:00s	1:00	D
-Rule	Cuba	2006	max	-	Oct	lastSun	0:00s	0	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Havana	-5:29:28 -	LMT	1890
@@ -2065,26 +1840,6 @@ Zone America/Guatemala	-6:02:04 -	LMT	1918 Oct 5
 			-6:00	Guat	C%sT
 
 # Haiti
-# From Gwillim Law (2005-04-15):
-# Risto O. Nykanen wrote me that Haiti is now on DST.
-# I searched for confirmation, and I found a
-# <a href="http://www.haitianconsulate.org/time.doc"> press release
-# on the Web page of the Haitian Consulate in Chicago (2005-03-31),
-# </a>.  Translated from French, it says:
-#
-#  "The Prime Minister's Communication Office notifies the public in general
-#   and the press in particular that, following a decision of the Interior
-#   Ministry and the Territorial Collectivities [I suppose that means the
-#   provinces], Haiti will move to Eastern Daylight Time in the night from next
-#   Saturday the 2nd to Sunday the 3rd.
-#
-#  "Consequently, the Prime Minister's Communication Office wishes to inform
-#   the population that the country's clocks will be set forward one hour
-#   starting at midnight.  This provision will hold until the last Saturday in
-#   October 2005.
-#
-#  "Port-au-Prince, March 31, 2005"
-
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Haiti	1983	only	-	May	8	0:00	1:00	D
 Rule	Haiti	1984	1987	-	Apr	lastSun	0:00	1:00	D
@@ -2092,8 +1847,6 @@ Rule	Haiti	1983	1987	-	Oct	lastSun	0:00	0	S
 # Shanks says AT is 2:00, but IATA SSIM (1991/1997) says 1:00s.  Go with IATA.
 Rule	Haiti	1988	1997	-	Apr	Sun>=1	1:00s	1:00	D
 Rule	Haiti	1988	1997	-	Oct	lastSun	1:00s	0	S
-Rule	Haiti	2005	only	-	Apr	Sun>=1	0:00	1:00	D
-Rule	Haiti	2005	only	-	Oct	lastSun	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Port-au-Prince -4:49:20 -	LMT	1890
 			-4:49	-	PPMT	1917 Jan 24 12:00 # P-a-P MT
@@ -2145,44 +1898,11 @@ Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Olveston
 # Nicaragua seems to be back at -6:00 but I have not been able to find when
 # they changed from -5:00.
 #
-# From Steffen Thorsen (2005-04-12):
-# I've got reports from 8 different people that Nicaragua just started
-# DST on Sunday 2005-04-10, in order to save energy because of
-# expensive petroleum.  The exact end date for DST is not yet
-# announced, only "September" but some sites also say "mid-September".
-# Some background information is available on the President's official site:
-# http://www.presidencia.gob.ni/Presidencia/Files_index/Secretaria/Notas%20de%20Prensa/Presidente/2005/ABRIL/Gobierno-de-nicaragua-adelanta-hora-oficial-06abril.htm
-# The Decree, no 23-2005 is available here:
-# http://www.presidencia.gob.ni/buscador_gaceta/BD/DECRETOS/2005/Decreto%2023-2005%20Se%20adelanta%20en%20una%20hora%20en%20todo%20el%20territorio%20nacional%20apartir%20de%20las%2024horas%20del%2009%20de%20Abril.pdf
-#
-# From Paul Eggert (2005-05-01):
-# The decree doesn't say anything about daylight saving, but for now let's
-# assume that it is daylight saving and that they'll switch back on the
-# 3rd Sunday in September.
-#
-# From Gwillim Law (2005-04-21):
-# The Associated Press story on the time change, which can be found at
-# http://www.lapalmainteractivo.com/guias/content/gen/ap/America_Latina/AMC_GEN_NICARAGUA_HORA.html
-# and elsewhere, says (fifth paragraph, translated from Spanish):  "The last
-# time that a change of clocks was applied to save energy was in the year 2000
-# during the Arnoldo Aleman administration."...
-# The northamerica file says that Nicaragua has been on UTC-6 continuously
-# since December 1998.  I wasn't able to find any details of Nicaraguan time
-# changes in 2000.  Perhaps a note could be added to the northamerica file, to
-# the effect that we have indirect evidence that DST was observed in 2000.
-#
-# From Jesper Norgaard Welen (2005-11-02):
-# Nicaragua left DST the 2005-10-02 at 00:00 (local time).
-# http://www.presidencia.gob.ni/presidencia/files_index/secretaria/comunicados/2005/septiembre/26septiembre-cambio-hora.htm
-# (2005-09-26)
-#
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Nic	1979	1980	-	Mar	Sun>=16	0:00	1:00	D
 Rule	Nic	1979	1980	-	Jun	Mon>=23	0:00	0	S
-Rule	Nic	1992	only	-	Jan	 1	4:00	1:00	D
+Rule	Nic	1992	only	-	Jan	1	4:00	1:00	D
 Rule	Nic	1992	only	-	Sep	24	0:00	0	S
-Rule	Nic	2005	only	-	Apr	10	0:00	1:00	D
-Rule	Nic	2005	only	-	Oct	 2	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Managua	-5:45:08 -	LMT	1890
 			-5:45:12 -	MMT	1934 Jun 23 # Managua Mean Time?
@@ -2190,7 +1910,7 @@ Zone	America/Managua	-5:45:08 -	LMT	1890
 			-5:00	-	EST	1975 Feb 16
 			-6:00	Nic	C%sT	1993 Jan 1 4:00
 			-5:00	-	EST	1998 Dec
-			-6:00	Nic	C%sT
+			-6:00	-	CST
 
 # Panama
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]