proposed changes for Brazil, Mauritius, Argentina, Berlin 1945, etc.

Paul Eggert eggert at CS.UCLA.EDU
Mon Jul 7 07:47:27 UTC 2008 

In reviewing those changes I noticed one howler: they didn't update
America/Eirunepe, which also moved from ACT (UTC-5) to AMT (UTC-4) on
June 24.

Here's a proposed patch that integrates this change, plus some other,
less-important changes, some of which I have been saving up for quite
some time.  Sorry about the delay.

By the way, I had trouble with the patch that removed the accent, due
to mail-encoding issues (is it UTF-8 or Latin-1? it matters).
Possibly you'll have the same problem with my patch enclosed below,
too.  Given this problem with emailed patches, I'd prefer to avoid
non-ASCII characters even in the comments, for a while longer anyway.

To try to be a bit safer I'll also attach the proposed patch as a
binary file.

The enclosed patch is relative to tzdata2008c, and contains the
following changes over and above the changes that were in Arthur's
patches:


Changes affecting current and future time stamps.

* America/Eirunepe also changed from ACT (UTC-5) to AMT (UTC-4) on June 24.

Changes affecting past time stamps.

* For Mauritius, also include the 1982/1983 DST as reported by Steffen Thorsen.

* For America/Argentina/San_Luis, redo the history from 1990 through 2000
  to match what's in Shanks & Pottenger.

The following changes should not affect externally visible behavior.

* Redo comments about Brazil to make it clearer about what west Para contains.

* Update Brazil comments to mention Decree 6,212 (2007-09-26).

* Make comments a bit more concise for Brazil and Mauritius.

* Redo comments about Argentina to reflect the fact that San Luis is now
  separate.

* Redo the daylight-saving rules for Berlin in 1945 to make it clearer that
  these are for the Soviet Zone, not for Berlin in general.

* Redo Bahamas rules to make it clearer that the rules after 1975 are the
  same as the US.

* Add comments about time in China from 1949 to 1980.
  (Thanks to Thomas S. Mullaney for this.)

* In tz-link.htm, add mention of daylight-savings-time.info,
  update links to Vzic, to efele.net map, and to the NPL.


===================================================================
RCS file: RCS/africa,v
retrieving revision 2008.3
retrieving revision 2008.3.0.1
diff -pu -r2008.3 -r2008.3.0.1
--- africa	2008/05/19 21:48:03	2008.3
+++ africa	2008/07/07 07:35:01	2008.3.0.1
@@ -1,4 +1,4 @@
-# @(#)africa	8.11
+# @(#)africa	8.12
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -387,9 +387,33 @@ Zone Africa/Nouakchott	-1:03:48 -	LMT	19
 			 0:00	-	GMT
 
 # Mauritius
+
+# From Steffen Thorsen (2008-06-25):
+# Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial
+# basis....
+# It seems that Mauritius observed daylight saving time from 1982-10-10 to 
+# 1983-03-20 as well, but that was not successful....
+# http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
+#
+# From Alex Krivenyshev (2008-06-25):
+# http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b24128104d9845dabddd154508a0c/?content_id=0a7cee8b5d69a110VgnVCM1000000a04a8c0RCRD
+#
+# From Arthur David Olson (2008-06-30):
+# The www.timeanddate.com article cited by Steffen Thorsen notes that "A
+# final decision has yet to be made on the times that daylight saving
+# would begin and end on these dates." As a place holder, use midnight.
+#
+# From Paul Eggert (2008-06-30):
+# Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule Mauritius	1982	only	-	Oct	10	0:00	1:00	S
+Rule Mauritius	1983	only	-	Mar	21	0:00	0	-
+Rule Mauritius	2008	only	-	Nov	 1	0:00	1:00	S
+Rule Mauritius	2009	only	-	Apr	 1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Indian/Mauritius	3:50:00 -	LMT	1907		# Port Louis
-			4:00	-	MUT	# Mauritius Time
+			4:00 Mauritius	MU%sT	# Mauritius Time
 # Agalega Is, Rodriguez
 # no information; probably like Indian/Mauritius
 
===================================================================
RCS file: RCS/asia,v
retrieving revision 2008.3
retrieving revision 2008.3.0.1
diff -pu -r2008.3 -r2008.3.0.1
--- asia	2008/05/19 21:47:52	2008.3
+++ asia	2008/07/07 07:35:01	2008.3.0.1
@@ -229,6 +229,28 @@ Rule	PRC	1987	1991	-	Apr	Sun>=10	0:00	1:
 # (could be true), for the moment I am assuming that those two
 # counties are mistakes in the astro.com data.
 
+# From Paul Eggert (2008-02-11):
+# I just now checked Google News for western news sources that talk
+# about China's single time zone, and couldn't find anything before 1986
+# talking about China being in one time zone.  (That article was: Jim
+# Mann, "A clumsy embrace for another western custom: China on daylight
+# time--sort of", Los Angeles Times, 1986-05-05.  By the way, this
+# article confirms the tz database's data claiming that China began
+# observing daylight saving time in 1986.
+#
+# From Thomas S. Mullaney (2008-02-11):
+# I think you're combining two subjects that need to treated 
+# separately: daylight savings (which, you're correct, wasn't 
+# implemented until the 1980s) and the unified time zone centered near 
+# Beijing (which was implemented in 1949). Briefly, there was also a 
+# "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was 
+# ceased, and the second eventually recognized (again, in the 1980s).
+#
+# From Paul Eggert (2008-06-30):
+# There seems to be a good chance China switched to a single time zone in 1949
+# rather than in 1980 as Shanks & Pottenger have it, but we don't have a
+# reliable documentary source saying so yet, so for now we still go with
+# Shanks & Pottenger.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 # Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
===================================================================
RCS file: RCS/australasia,v
retrieving revision 2007.7
retrieving revision 2007.7.0.1
diff -pu -r2007.7 -r2007.7.0.1
--- australasia	2007/08/20 14:45:10	2007.7
+++ australasia	2008/07/07 07:35:01	2007.7.0.1
@@ -1,4 +1,4 @@
-# @(#)australasia	8.8
+# @(#)australasia	8.9
 # <pre>
 
 # This file also includes Pacific islands.
@@ -1346,7 +1346,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # * Tonga will introduce DST in November
 #
 # I was given this link by John Letts:
-# <a hef="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm">
+# <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm">
 # http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm
 # </a>
 #
@@ -1356,7 +1356,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # (12 + 1 hour DST).
 
 # From Arthur David Olson (1999-09-20):
-# According to <a href="http://www.tongaonline.com/news/sept1799.html>
+# According to <a href="http://www.tongaonline.com/news/sept1799.html">
 # http://www.tongaonline.com/news/sept1799.html
 # </a>:
 # "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000
===================================================================
RCS file: RCS/europe,v
retrieving revision 2007.11
retrieving revision 2007.11.0.1
diff -pu -r2007.11 -r2007.11.0.1
--- europe	2007/12/31 15:23:09	2007.11
+++ europe	2008/07/07 07:35:01	2007.11.0.1
@@ -1,4 +1,4 @@
-# @(#)europe	8.12
+# @(#)europe	8.13
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -457,7 +457,7 @@ Rule	EU	1979	1995	-	Sep	lastSun	 1:00u	0
 Rule	EU	1981	max	-	Mar	lastSun	 1:00u	1:00	S
 Rule	EU	1996	max	-	Oct	lastSun	 1:00u	0	-
 # The most recent directive covers the years starting in 2002.  See:
-# <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html"
+# <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html">
 # Directive 2000/84/EC of the European Parliament and of the Council
 # of 19 January 2001 on summer-time arrangements.
 # </a>
@@ -480,9 +480,10 @@ Rule	C-Eur	1940	only	-	Apr	 1	 2:00s	1:0
 Rule	C-Eur	1942	only	-	Nov	 2	 2:00s	0	-
 Rule	C-Eur	1943	only	-	Mar	29	 2:00s	1:00	S
 Rule	C-Eur	1943	only	-	Oct	 4	 2:00s	0	-
-Rule	C-Eur	1944	only	-	Apr	 3	 2:00s	1:00	S
+Rule	C-Eur	1944	1945	-	Apr	Mon>=1	 2:00s	1:00	S
 # Whitman gives 1944 Oct 7; go with Shanks & Pottenger.
 Rule	C-Eur	1944	only	-	Oct	 2	 2:00s	0	-
+Rule	C-Eur	1945	only	-	Sep	16	 2:00	0	-
 Rule	C-Eur	1977	1980	-	Apr	Sun>=1	 2:00s	1:00	S
 Rule	C-Eur	1977	only	-	Sep	lastSun	 2:00s	0	-
 Rule	C-Eur	1978	only	-	Oct	 1	 2:00s	0	-
@@ -1099,27 +1100,34 @@ Zone	Europe/Paris	0:09:21 -	LMT	1891 Mar
 
 # From Paul Eggert (2003-03-08):
 # <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf">
+# http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf
+# </a>
 # says that Bersarin issued an order to use Moscow time on May 20.
 # However, Moscow did not observe daylight saving in 1945, so
 # this was equivalent to CEMT (GMT+3), not GMT+4.
 
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Germany	1945	only	-	Apr	 2	2:00s	1:00	S
-Rule	Germany	1945	only	-	May	24	2:00	2:00	M # Midsummer
-Rule	Germany	1945	only	-	Sep	24	3:00	1:00	S
-Rule	Germany	1945	only	-	Nov	18	2:00s	0	-
 Rule	Germany	1946	only	-	Apr	14	2:00s	1:00	S
 Rule	Germany	1946	only	-	Oct	 7	2:00s	0	-
 Rule	Germany	1947	1949	-	Oct	Sun>=1	2:00s	0	-
-Rule	Germany	1947	only	-	Apr	 6	2:00s	1:00	S
+# http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition
+# occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger.
+# Go with the PTB.
+Rule	Germany	1947	only	-	Apr	 6	3:00s	1:00	S
 Rule	Germany	1947	only	-	May	11	2:00s	2:00	M
 Rule	Germany	1947	only	-	Jun	29	3:00	1:00	S
 Rule	Germany	1948	only	-	Apr	18	2:00s	1:00	S
 Rule	Germany	1949	only	-	Apr	10	2:00s	1:00	S
+
+Rule SovietZone	1945	only	-	May	24	2:00	2:00	M # Midsummer
+Rule SovietZone	1945	only	-	Sep	24	3:00	1:00	S
+Rule SovietZone	1945	only	-	Nov	18	2:00s	0	-
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Berlin	0:53:28 -	LMT	1893 Apr
-			1:00	C-Eur	CE%sT	1945 Apr 2 2:00
+			1:00	C-Eur	CE%sT	1945 May 24 2:00
+			1:00 SovietZone	CE%sT	1946
 			1:00	Germany	CE%sT	1980
 			1:00	EU	CE%sT
 
===================================================================
RCS file: RCS/northamerica,v
retrieving revision 2008.2
retrieving revision 2008.2.0.1
diff -pu -r2008.2 -r2008.2.0.1
--- northamerica	2008/03/24 12:30:58	2008.2
+++ northamerica	2008/07/07 07:35:01	2008.2.0.1
@@ -2076,8 +2076,8 @@ Zone	America/Antigua	-4:07:12 -	LMT	1912
 # http://www.jonesbahamas.com/?c=45&a=10412
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Bahamas	1964	2006	-	Oct	lastSun	2:00	0	S
-Rule	Bahamas	1964	1986	-	Apr	lastSun	2:00	1:00	D
+Rule	Bahamas	1964	1975	-	Oct	lastSun	2:00	0	S
+Rule	Bahamas	1964	1975	-	Apr	lastSun	2:00	1:00	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Nassau	-5:09:24 -	LMT	1912 Mar 2
 			-5:00	Bahamas	E%sT	1976
===================================================================
RCS file: RCS/southamerica,v
retrieving revision 2008.2
retrieving revision 2008.2.0.1
diff -pu -r2008.2 -r2008.2.0.1
--- southamerica	2008/03/24 12:30:58	2008.2
+++ southamerica	2008/07/07 07:35:01	2008.2.0.1
@@ -1,4 +1,4 @@
-# @(#)southamerica	8.19
+# @(#)southamerica	8.22
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -294,14 +294,14 @@ Rule	Arg	2008	max	-	Oct	Sun>=1	0:00	1:00
 # back in 2004, when these provinces changed to UTC-4 for a few days, I
 # mailed them personally and never got an answer).
 
-# From Arthur David Olson (2008-03-15):
-# Until there's better information, asssume San Luis was like San Juan
-# rather than Mendoza (since San Juan has a simpler DST history).
-
+# From Paul Eggert (2008-06-30):
 # Unless otherwise specified, data are from Shanks & Pottenger through 1992,
 # from the IATA otherwise.  As noted below, Shanks & Pottenger say that
-# America/Cordoba split into 6 subregions during 1991/1992, but we
-# haven't verified this yet so for now we'll keep it a single region.
+# America/Cordoba split into 6 subregions during 1991/1992, one of which
+# was America/San_Luis, but we haven't verified this yet so for now we'll
+# keep America/Cordoba a single region rather than splitting it into the
+# other 5 subregions.
+
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 #
@@ -316,14 +316,12 @@ Zone America/Argentina/Buenos_Aires -3:5
 #
 # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
 # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
-# San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
+# La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
 #
 # Shanks & Pottenger also make the following claims, which we haven't verified:
 # - Formosa switched to -3:00 on 1991-01-07.
 # - Misiones switched to -3:00 on 1990-12-29.
 # - Chaco switched to -3:00 on 1991-01-04.
-# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
-#   then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
 # - Santiago del Estero switched to -4:00 on 1991-04-01,
 #   then to -3:00 on 1991-04-26.
 #
@@ -425,10 +423,13 @@ Zone America/Argentina/San_Luis -4:25:24
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	ART	1930 Dec
 			-4:00	Arg	AR%sT	1969 Oct  5
-			-3:00	Arg	AR%sT	1991 Mar  1
-			-4:00	-	WART	1991 May  7
-			-3:00	Arg	AR%sT	1999 Oct  3
-			-4:00	Arg	AR%sT	2000 Mar  3
+			-3:00	Arg	AR%sT	1990
+			-3:00	1:00	ARST	1990 Mar 14
+			-4:00	-	WART	1990 Oct 15
+			-4:00	1:00	WARST	1991 Mar  1
+			-4:00	-	WART	1991 Jun  1
+			-3:00	-	ART	1999 Oct  3
+			-4:00	1:00	WARST	2000 Mar  3
 			-3:00	-	ART	2004 May 31
 			-4:00	-	WART	2004 Jul 25
 			-3:00	Arg	AR%sT	2008 Jan 21
@@ -540,6 +541,22 @@ Zone	America/La_Paz	-4:32:36 -	LMT	1890
 # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00:
 # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975
 
+# From Paul Schulze (2008-06-24):
+# ... by law number 11.662 of April 24, 2008
+# (published in the "Diario Oficial da Uniao"
+# https://www.in.gov.br/imprensa/jsp/jsp/jornaiscompletos/visualizacao/pdf/visualiza_pdf.jsp?jornal=do&secao=1&pagina=01&data=25/04/2008)
+# in Brazil there are changes in the timezones, effective today
+# (00:00 at June 24, 2008) as follows:
+#    a)	The timezone UTC+5 is estinguished, with all the Acre state and
+#	the part of the Amazonas state that had this timezone now being put
+#	to the timezone UTC+4
+#    b)	The whole Para state now is put at timezone UTC+3, instead of just
+#	part of it, as was before.
+# This change follows a proposal of senator Tiao Viana of Acre state,
+# that proposed it due to concerns about open television channels
+# displaying programs inappropriate to youths in the states that had the
+# timezone UTC+5 too early in the night.
+
 # From Paul Eggert (2002-10-10):
 # The official decrees referenced below are mostly taken from
 # <a href="http://pcdsh01.on.br/DecHV.html">
@@ -662,13 +679,13 @@ Rule	Brazil	2000	only	-	Feb	27	 0:00	0	-
 Rule	Brazil	2000	2001	-	Oct	Sun>=8	 0:00	1:00	S
 Rule	Brazil	2001	2006	-	Feb	Sun>=15	 0:00	0	-
 # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
-# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm"></a>
+# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>
 Rule	Brazil	2002	only	-	Nov	 3	 0:00	1:00	S
 # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
-# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm"></a>
+# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>
 Rule	Brazil	2003	only	-	Oct	19	 0:00	1:00	S
 # Decree 5,223 (2004-10-01) reestablishes DST in MT.
-# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm"></a>
+# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>
 Rule	Brazil	2004	only	-	Nov	 2	 0:00	1:00	S
 # Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),
 # adopted by the same states as before.
@@ -677,9 +694,8 @@ Rule	Brazil	2005	only	-	Oct	16	 0:00	1:0
 # adopted by the same states as before.
 Rule	Brazil	2006	only	-	Nov	 5	 0:00	1:00	S
 Rule	Brazil	2007	only	-	Feb	25	 0:00	0	-
-# (Decree number not yet known)
-# http://www.brasil.gov.br/noticias/ultimas_noticias/horario_verao070920/
-# (2007-09-20) after a heads-up from Steffen Thorsen:
+# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),
+# adopted by the same states as before.
 Rule	Brazil	2007	max	-	Oct	Sun>=8	 0:00	1:00	S
 Rule	Brazil	2008	max	-	Feb	Sun>=15	 0:00	0	-
 # The latest ruleset listed above says that the following states observe DST:
@@ -687,7 +703,6 @@ Rule	Brazil	2008	max	-	Feb	Sun>=15	 0:00
 # For dates after mid-2008, the above rules with TO="max" are guesses
 # and are quite possibly wrong, but are more likely than no DST at all.
 
-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 #
 # Fernando de Noronha (administratively part of PE)
@@ -713,6 +728,13 @@ Zone America/Belem	-3:13:56 -	LMT	1914
 			-3:00	Brazil	BR%sT	1988 Sep 12
 			-3:00	-	BRT
 #
+# west Para (PA)
+# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
+Zone America/Santarem	-3:38:48 -	LMT	1914
+			-4:00	Brazil	AM%sT	1988 Sep 12
+			-4:00	-	AMT	2008 Jun 24 00:00
+			-3:00	-	BRT
+#
 # Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
 # Paraiba (PB)
 Zone America/Fortaleza	-2:34:00 -	LMT	1914
@@ -775,8 +797,7 @@ Zone America/Cuiaba	-3:44:20 -	LMT	1914
 			-4:00	-	AMT	2004 Oct  1
 			-4:00	Brazil	AM%sT
 #
-# west Para (PA), Rondonia (RO)
-# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
+# Rondonia (RO)
 Zone America/Porto_Velho -4:15:36 -	LMT	1914
 			-4:00	Brazil	AM%sT	1988 Sep 12
 			-4:00	-	AMT
@@ -803,13 +824,14 @@ Zone America/Eirunepe	-4:39:28 -	LMT	191
 			-5:00	Brazil	AC%sT	1988 Sep 12
 			-5:00	-	ACT	1993 Sep 28
 			-5:00	Brazil	AC%sT	1994 Sep 22
-			-5:00	-	ACT
+			-5:00	-	ACT	2008 Jun 24 00:00
+			-4:00	-	AMT
 #
 # Acre (AC)
 Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 			-5:00	Brazil	AC%sT	1988 Sep 12
-			-5:00	-	ACT
-
+			-5:00	-	ACT	2008 Jun 24 00:00
+			-4:00	-	AMT
 
 # Chile
 
@@ -856,7 +878,7 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1
 # http://www.horaoficial.cl/cambio.htm
 # </a>.
 
-# From José Miguel Garrido (2008-03-05):
+# From Jose Miguel Garrido (2008-03-05):
 # ...
 # You could see the announces of the change on 
 # <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
===================================================================
RCS file: RCS/tz-link.htm,v
retrieving revision 2007.11
retrieving revision 2007.11.0.1
diff -pu -r2007.11 -r2007.11.0.1
--- tz-link.htm	2007/12/31 15:23:10	2007.11
+++ tz-link.htm	2008/07/07 07:35:01	2007.11.0.1
@@ -134,6 +134,9 @@ uses a pulldown menu.</li>
 timezone information for all countries</a> displays tables of DST rules.
 <li><a href="http://timeanddate.com/worldclock/">The World Clock -
 Time Zones</a> lets you sort zone names and convert times.</li>
+<li><a href="http://daylight-savings-time.info/">Graphical Display of
+Time Zones and Daylight Saving Times</a> shows a graph of time
+difference versus time for any pair of locations.</li>
 <li>The <a href="http://worldtimeengine.com/">World Time Engine</a>
 also contains data about time zone boundaries; it supports queries via place
 names and shows location maps.</li>
@@ -178,7 +181,7 @@ href="http://www.w3.org/2000/01/foo">sch
 </ul>
 <h2>Other <code>tz</code> compilers</h2>
 <ul>
-<li><a href="http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/">Vzic iCalendar
+<li><a href="http://www.dachaplin.dsl.pipex.com/vzic/">Vzic iCalendar
 Timezone Converter</a> describes a <a
 href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a>
 program that compiles
@@ -353,7 +356,7 @@ but the maps are more up to date.</li>
 </ul>
 <h2>Time zone boundaries</h2>
 <ul>
-<li><a href="http://efele.net/maps/">A map of the TZ timezones in
+<li><a href="http://efele.net/maps/tz/us/">A map of the TZ timezones in
 the US</a> contains a <a
 href="http://en.wikipedia.org/wiki/Shapefile">shapefile</a> of the
 <code>tz</code> regions in the US.</li>
@@ -477,7 +480,7 @@ href="http://www.srcf.ucam.org/~jsm28/br
 legal time in Britain</a> discusses in detail the country
 with perhaps the best-documented history of clock adjustments.
 The National Physical Laboratory also maintains an <a
-href="http://www.npl.co.uk/time/measurement_time/summer_time_archive.html">Archive
+href="http://www.npl.co.uk/server.php?show=ConWebDoc.2714">Archive
 of Summer time dates</a>.</dd>
 </dl>
 <h2>Precision timekeeping</h2>
===================================================================
RCS file: RCS/zone.tab,v
retrieving revision 2008.2
retrieving revision 2008.2.0.1
diff -pu -r2008.2 -r2008.2.0.1
--- zone.tab	2008/03/24 12:30:59	2008.2
+++ zone.tab	2008/07/07 07:35:01	2008.2.0.1
@@ -1,4 +1,4 @@
-# @(#)zone.tab	8.16
+# @(#)zone.tab	8.18
 #
 # TZ zone descriptions
 #
@@ -92,7 +92,8 @@ BR	-1259-03831	America/Bahia	Bahia
 BR	-2332-04637	America/Sao_Paulo	S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS)
 BR	-2027-05437	America/Campo_Grande	Mato Grosso do Sul
 BR	-1535-05605	America/Cuiaba	Mato Grosso
-BR	-0846-06354	America/Porto_Velho	W Para, Rondonia
+BR	-0226-05452	America/Santarem	W Para
+BR	-0846-06354	America/Porto_Velho	Rondonia
 BR	+0249-06040	America/Boa_Vista	Roraima
 BR	-0308-06001	America/Manaus	E Amazonas
 BR	-0640-06952	America/Eirunepe	W Amazonas



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