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RE: Updated Australian time zone names/strings
by rchapma6 ford.com April 6, 2001

April 6, 2001

Your cross posting caution was noted I similarly lurk on the ietf list and occasionally sally forth to pass comment. The issue of the ambiguity of abbreviations like "EST" might best be solved by prefixing the three initials with the ISO Country Code see http://itl5.itlnet.com/isocodes.htm for examples. So the Australian EST would be AUEST and the US EST would be USEST. There may be another advantage to do with Daylight Savings/Summer Time. These (I believe) are determined at national or regional level so those countries who do observe Daylight Savings/Summer Time would have two entries per time zone. for example:- USEST UTC -5:00 USEDT UTC -4:00 Add to this the entry and exit criteria for Daylight Savings/Summer Time (and I hope I get this correct!) USEST UTC -5:00 Last Sunday in September USEDT UTC -4:00 Last Sunday in March GBGMT UTC 0:00 Last Sunday in October GBBST UTC +1:00 4th Sunday in March?? or the explicit dates if there is no sensible way of determining when the clocks change! For countries like Japan where they do not observe Daylight Savings the entry would look like JPxxx UTC +8:00 The absence of date showing non-observation Hope that helps a bit Roger Chapman Specilaist, Collaborative Applications Ford Systems Integration Center Information Technology and eBusiness Ford Motor Company -----Original Message----- From: David Madeo [mailto:David.Madeo@morganstanley.com] Sent: 06 April 2001 05:21 To: Greg Black Cc: Paul Eggert; tz(a)elsie.nci.nih.gov; ietf-calendar(a)imc.org Subject: Re: Updated Australian time zone names/strings <Caution: cross posted to both ietf-calendar and tz mailgroups. Please reply carefully> Since I'm a lurker on both the tz and ietf lists, occasionally I see that it's appropriate to mix the audiences. This thread from the tz list is whether the tz maintainers should be trying to uniquify the timezone abbreviations such as "EST" which can mean several different timezones around the world, depending on whether you ask an Australian or an American. Greg Black wrote: > Paul Eggert wrote: > > | * How important are unique time zone abbreviations? > | > | Here I tend to agree with the point (most recently made by Chris > | Newman) that unique abbreviations should not be essential for proper > | operation of software. > > I think this flies in the face of common sense and the old > principle about being flexible in handling input while trying to > make output as good as possible. I'd certainly prefer unique and unambiguous abbreviations (AEST) as well as unique names "Australia/Sydney" based on the Continent/Largest City. Anytime we can reduce confusion and make something easier for people *and* computers to understand, we should. > || The final decision is Arthur David Olson's, since he's maintaining > | the database. My own mild preference for now (given what's been said > | so far) would be to leave it alone. > > I know the decision is in Arthur David Olson's hands, but I > would imagine that he will be responsive to the wishes of the > affected parties. I'm keen to see more input into this. The tz database is the closest thing to a "standard" timezone listing. As such, there's a lot of benefit if it does the "right" thing. I've cc'd the ietf list since they are effectively "users" of this sort of data and might have some input. dmadeo

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New date and time draft
by Graham Klyne April 6, 2001

April 6, 2001

FYI, I've submitted a revision of the date and time draft Chris Newman wrote some time ago. One of the goals for the current revision is to create a separate specification that answers a clear and present requirement from other parts concerning which there is less clear consensus. Specifically, this draft aims to move forward the timestamp elements of Chris' original work, while allowing the trickier "schedule events" elements to be picked up and developed by a group with more specific relevant expertise and goals, if required. #g -- A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Instant Messaging and Presence Protocol Working Group of the IETF. Title : Date and Time on the Internet: Timestamps Author(s) : C. Newman, G. Klyne Filename : draft-ietf-impp-datetime-00.txt Pages : 16 Date : 03-Apr-01 This document defines a date and time format for use in Internet protocols that is a profile of the ISO 8601 [ISO8601] standard for representation of dates and times using the Gregorian calendar. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-impp-datetime-00.txt ------------ Graham Klyne (GK(a)ACM.ORG)

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Tires of Cable TV raising there rates!!!
by b4h443＠arabia.com April 6, 2001

April 6, 2001

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tzcode2001b.tar.gz and tzdata2001b.tar.gz
by Olson, Arthur David (NCI) April 5, 2001

April 5, 2001

The files ftp://elsie.nci.nih.gov/~pub/tzcode2001b.tar.gz and ftp://elsie.nci.nih.gov/~pub/tzdata2001b.tar.gz are now available. These include the changes circulated last week on the time zone mailing list by Paul Eggert (modulo jnorgard's typo fix). In addition, tz-art.htm has been htmlified. --ado

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(no subject)
by Andrew Gaylard (Dimension Data) April 5, 2001

April 5, 2001

Hi, In your bundle (ftp://elsie.nci.nih.gov/pub/tzdata2001a.tar.gz) I see that you have Africa/Johannesburg as a "zone name" (is that the correct term for it?) But there isn't Africa/Pretoria. Surely there should be? It is the capital city of South Africa. It looks to me that all the other zones are named after the capital of the relevant country. Thanks for your work in maintaining this data -- our vendors have been very slack at keeping up to date with it, and we depend on yours to work around some bugs in old vendor data (HP, Sun, SGI).

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proposed tz patches for Mexico, Nunavut, Vostok, etc.
by Paul Eggert April 3, 2001

April 3, 2001

Jesper Norgaard's letter about what actually happened in Mexico this morning prompted me to propose the tz patches enclosed below, which accumulate most of the changes recently proposed. The patches for Mexico are the most important, though Nunavut and Vostok also need fixes now so that current time stamps are reported correctly. Sorry, I haven't had time to think through the issue of Australian time zone abbreviations yet. If I recall correctly, we have so far: * one well-researched proposal to change from EST/EST etc to AEST/AEDT etc; * one second. * one dissenting vote to leave it at is. * my own brief research indicating that Australians themselves are not consistent Right now we have to get the Mexican patches out, so I'll leave the Australian abbreviations alone for now, but I'd like more votes and/or research if possible. Anyway, here is a summary of the patch proposed below: * Despite earlier predictions, America/Monterrey and America/Chihuahua did _not_ change their clocks today. They will change at the same time as the rest of Mexico. (Thanks to Jesper Norgaard for this.) * Nunavut went back to its pre-1999 ways, effective today. (Thanks to Rives McDow for this.) * Antarctica/Vostok is at UTC+6, not UTC+3. The message I got from Vostok was a bit confusing; perhaps nobody in Antarctica observes DST, contrary to our tables? We need more info about this. (Thanks to Lee Hotz for this.) * Correct several errors for Dutch daylight saving time before World War II. (Thanks to Robert H. van Gent for this.) * Alaska switched from Asian to American dates on 1867-10-18. We can't capture the Julian-to-Gregorian switch that occurred at the same time, but at least we can capture the 24-hour time zone change. (Thanks to Robert H. van Gent for this.) * The Philippines switched from American to Asian dates on 1844-12-31. (Thanks to Robert H. van Gent for obtaining a copy of the proclamation.) For now, guess the Ladrones switched at the same time. The following changes affect commentary only: * Add references to Vzic (a tz-to-VTIMEZONE compiler), and to possible XML schemata for tz data. * Add references to a history of the International Date Line, and to Netherlands time zone history. (Thanks to Robert H. van Gent for this.) * Update the status of various Antarctic stations, some of which have closed. * Update the instructions for running the XHTML validator. =================================================================== RCS file: RCS/antarctica,v retrieving revision 2001.1 retrieving revision 2001.1.0.2 diff -pu -r2001.1 -r2001.1.0.2 --- antarctica 2001/03/13 17:57:38 2001.1 +++ antarctica 2001/04/01 10:15:23 2001.1.0.2 @@ -200,25 +200,27 @@ Rule NZAQ 1990 max - Mar Sun>=15 2:00s 0 # Russia - year-round bases # Bellingshausen, King George Island, -621159-0585337, since 1968-02-22 # Mirny, Davis coast, -6633+09301, since 1956-02 -# Molodezhnaya -# Novolazarevskaya +# Molodezhnaya, Alasheyev Bay, year-round from 1962-02 to 1999-07-01 +# Novolazarevskaya, Queen Maud Land, -7046+01150, +# year-round from 1960/61 to 1992 -# Vostok, since 1957-12-16 +# Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11 # <a href="http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP"> # From Craig Mundell (1994-12-15)</a>: # Vostok, which is one of the Russian stations, is set on the same # time as Moscow, Russia. # -# From Paul Eggert (2001-03-03): -# Today I talked with a neighbor Robert Lee Hotz, a neighbor who -# recently returned from Vostok. He said that the Americans have a -# substation next to Vostok that keeps New Zealand time. -# He thought the Russians still use Moscow time, but wasn't sure. +# From Lee Hotz (2001-03-08): +# I queried the folks at Columbia who spent the summer at Vostok and this is +# what they had to say about time there: +# ``in the US Camp (East Camp) we have been on New Zealand (McMurdo) +# time, which is 12 hours ahead of GMT. The Russian Station Vostok was +# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead +# of GMT). This is a time zone I think two hours east of Moscow. The +# natural time zone is in between the two: 8 hours ahead of GMT.'' # Zone Antarctica/Vostok 0 - zzz 1957 Dec 16 - 3:00 RussAQ MSK/MSD 1991 Mar 31 2:00s - 2:00 RussAQ EE%sT 1992 Jan 19 2:00s - 3:00 RussAQ MSK/MSD + 6:00 - VOST # Vostok time # S Africa - year-round bases # Marion Island @@ -231,14 +233,16 @@ Zone Antarctica/Vostok 0 - zzz 1957 Dec # scientific station from 1903 # whaling station at Signy I 1920/1926 # South Shetland Islands -# whaling station at Deception I 1912/1931 -# scientific station from 1943; -# previously sealers and a scientific expedition wintered by accident, -# and a garrison was deployed briefly # # year-round bases # Bird Island, South Georgia, -5400-03803, since 1983 -# Halley, Coates Land, -7535-2619, since 1956-01-06 +# Deception Island, -6259-06034, whaling station 1912/1931, +# scientific station 1943/1967, +# previously sealers and a scientific expedition wintered by accident, +# and a garrison was deployed briefly +# Halley, Coates Land, -7535-02604, since 1956-01-06 +# Halley is on a moving ice shelf and is periodically relocated +# so that it is never more than 10km from its nominal location. # Rothera, Adelaide Island, -6734-6808, since 1976-12-01 # Uruguay - year round base @@ -262,12 +266,13 @@ Zone Antarctica/Palmer 0 - zzz 1965 -4:00 ChileAQ CL%sT # # -# McMurdo, Ross Island, since 1956 +# McMurdo, Ross Island, since 1955-12 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/McMurdo 0 - zzz 1956 12:00 NZAQ NZ%sT # -# Amundsen-Scott, South Pole, since 1957-01-23 +# Amundsen-Scott, South Pole, continuously occupied since 1956-11-20 +# # From Paul Eggert (1996-09-03): # Normally it wouldn't have a separate entry, since it's like the # larger Antarctica/McMurdo since 1970, but it's too famous to omit. =================================================================== RCS file: RCS/asia,v retrieving revision 2001.1 retrieving revision 2001.1.0.1 diff -pu -r2001.1 -r2001.1.0.1 --- asia 2001/03/13 17:57:38 2001.1 +++ asia 2001/04/01 10:08:58 2001.1.0.1 @@ -1111,7 +1111,10 @@ Zone Asia/Gaza 2:17:52 - LMT 1900 Oct # no information # Philippines -# Howse writes (p 153) that until 1844 the Philippines kept American date. +# On 1844-08-16, Narciso Claveria, governor-general of the +# Philippines, issued a proclamation announcing that 1844-12-30 was to +# be immediately followed by 1845-01-01. Robert H. van Gent has a +# transcript of the decree in <http://www.phys.uu.nl/~vgent/idl/idl.htm>. # The rest of this data is from Shanks. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Phil 1936 only - Nov 1 0:00 1:00 S @@ -1121,7 +1124,7 @@ Rule Phil 1954 only - Jul 1 0:00 0 - Rule Phil 1978 only - Mar 22 0:00 1:00 S Rule Phil 1978 only - Sep 21 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Asia/Manila -15:56:00 - LMT 1844 +Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 8:04:00 - LMT 1899 May 11 8:00 Phil PH%sT 1942 May 9:00 - JST 1944 Nov =================================================================== RCS file: RCS/australasia,v retrieving revision 2001.1 retrieving revision 2001.1.0.1 diff -pu -r2001.1 -r2001.1.0.1 --- australasia 2001/03/13 17:57:39 2001.1 +++ australasia 2001/04/01 10:08:58 2001.1.0.1 @@ -222,7 +222,8 @@ Zone Pacific/Tahiti -9:58:16 - LMT 1912 # Guam # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Guam 9:39:00 - LMT 1901 # Agana +Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31 + 9:39:00 - LMT 1901 # Agana 10:00 - GST 2000 Dec 23 # Guam 10:00 - ChST # Chamorro Standard Time @@ -241,7 +242,8 @@ Zone Pacific/Kiritimati -10:29:20 - LMT # N Mariana Is # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone Pacific/Saipan 9:43:00 - LMT 1901 +Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31 + 9:43:00 - LMT 1901 9:00 - MPT 1969 Oct # N Mariana Is Time 10:00 - MPT 2000 Dec 23 10:00 - ChST # Chamorro Standard Time @@ -977,7 +979,8 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # Howse writes (p 153) ``The Spaniards, on the other hand, reached the # Philippines and the Ladrones from America,'' and implies that the Ladrones # (now called the Marianas) kept American date for quite some time. -# Ignore this for now, as we have no hard data. See also Asia/Manila. +# For now, we assume the Ladrones switched at the same time as the Philippines; +# see Asia/Manila. # US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time, # under the name "Chamorro Standard Time". There is no official abbreviation, =================================================================== RCS file: RCS/europe,v retrieving revision 2001.1 retrieving revision 2001.1.0.1 diff -pu -r2001.1 -r2001.1.0.1 --- europe 2001/03/13 17:57:39 2001.1 +++ europe 2001/04/01 10:08:58 2001.1.0.1 @@ -405,6 +405,11 @@ Rule EU 1978 only - Oct 1 1:00u 0 - 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" +# Directive 2000/84/EC of the European Parliament and of the Council +# of 19 January 2001 on summer-time arrangements. +# </a> # W-Eur differs from EU only in that W-Eur uses standard time. Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 S @@ -1368,37 +1373,33 @@ Zone Europe/Monaco 0:29:32 - LMT 1891 Ma # Netherlands # Howse writes that the Netherlands' railways used GMT between 1892 and 1940, # but for other purposes the Netherlands used Amsterdam mean time. +# The data before 1945 is taken from +# <http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm>. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -# Shanks gives 1916 Apr 30 24:00 and 1916 Oct 1 00:00; go with Whitman. -Rule Neth 1916 only - May 1 2:00s 1:00 NST # Netherlands Summer Time -Rule Neth 1916 only - Oct 2 2:00s 0 AMT # Amsterdam Mean Time +Rule Neth 1916 only - May 1 0:00 1:00 NST # Netherlands Summer Time +Rule Neth 1916 only - Oct 1 0:00 0 AMT # Amsterdam Mean Time Rule Neth 1917 only - Apr 16 2:00s 1:00 NST Rule Neth 1917 only - Sep 17 2:00s 0 AMT -# Whitman gives 1918 Apr 14, 1918 Oct 31, and 1921 Sep 28; go with Shanks. Rule Neth 1918 1921 - Apr Mon>=1 2:00s 1:00 NST -Rule Neth 1918 1921 - Sep Mon>=24 2:00s 0 AMT -Rule Neth 1922 only - Mar 26 2:00s 1:00 NST -# Whitman gives 1939 Oct 1; go with Shanks. +Rule Neth 1918 1921 - Sep lastSun 2:00s 0 AMT +Rule Neth 1922 only - Mar lastSun 2:00s 1:00 NST Rule Neth 1922 1936 - Oct Sun>=2 2:00s 0 AMT -Rule Neth 1923 only - Jun 1 2:00s 1:00 NST -Rule Neth 1924 only - Mar 30 2:00s 1:00 NST -# Whitman gives 1925 Apr 5; go with Shanks. -Rule Neth 1925 only - Jun 5 2:00s 1:00 NST -# For 1926 through 1930 Whitman gives Apr 15; go with Shanks. +Rule Neth 1923 only - Jun Fri>=1 2:00s 1:00 NST +Rule Neth 1924 only - Mar lastSun 2:00s 1:00 NST +Rule Neth 1925 only - Jun Fri>=1 2:00s 1:00 NST Rule Neth 1926 1931 - May 15 2:00s 1:00 NST Rule Neth 1932 only - May 22 2:00s 1:00 NST Rule Neth 1933 1936 - May 15 2:00s 1:00 NST Rule Neth 1937 only - May 22 2:00s 1:00 NST Rule Neth 1937 only - Jul 1 0:00 1:00 S Rule Neth 1937 1939 - Oct Sun>=2 2:00s 0 - -# Whitman gives 1939 Apr 15 and 1940 Apr 19; go with Shanks. Rule Neth 1938 1939 - May 15 2:00s 1:00 S Rule Neth 1945 only - Apr 2 2:00s 1:00 S -Rule Neth 1945 only - May 20 2:00s 0 - +Rule Neth 1945 only - Sep 16 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Amsterdam 0:19:28 - LMT 1892 May 0:19:28 Neth %s 1937 Jul - 0:20 Neth NE%sT 1940 May 16 0:40 + 0:20 Neth NE%sT 1940 May 17 0:00 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Neth CE%sT 1977 1:00 EU CE%sT =================================================================== RCS file: RCS/Makefile,v retrieving revision 2000.8 retrieving revision 2000.8.0.1 diff -pu -r2000.8 -r2000.8.0.1 --- Makefile 2000/12/14 20:33:20 2000.8 +++ Makefile 2001/04/01 10:08:58 2000.8.0.1 @@ -218,11 +218,22 @@ ZIC= $(zic) $(ZFLAGS) # The name of a Posix-compliant `awk' on your system. AWK= nawk -# The name and arguments of a program to validate your web pages. +# The path where SGML DTDs are kept. +SGML_SEARCH_PATH= $(TOPDIR)/share/doc/sgml-lib/REC-xhtml1-20000126/ + +# The catalog file(s) to use when validating XHTML. +SGML_CATALOG_FILES= xhtml.soc + +# The name, arguments and environment of a program to validate your web pages. # See <http://www.jclark.com/sp/> for a validator, and # <http://validator.w3.org/source/> for a validation library. VALIDATE = nsgmls -VALIDATEFLAGS = -s -B -wall -wno-unused-param +VALIDATE_FLAGS = -s -B -wall -wno-unused-param -wxml +VALIDATE_ENV = \ + SGML_CATALOG_FILES=$(SGML_CATALOG_FILES) \ + SGML_SEARCH_PATH=$(SGML_SEARCH_PATH) \ + SP_CHARSET_FIXED=YES \ + SP_ENCODING=UTF-8 ############################################################################### @@ -357,7 +368,7 @@ check_tables: checktab.awk $(PRIMARY_YDA $(AWK) -f checktab.awk $(PRIMARY_YDATA) check_web: $(WEB_PAGES) - $(VALIDATE) $(VALIDATEFLAGS) $(WEB_PAGES) + $(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) $(WEB_PAGES) clean: rm -f core *.o *.out tzselect zdump zic yearistype date \ =================================================================== RCS file: RCS/northamerica,v retrieving revision 2001.1 retrieving revision 2001.1.0.1 diff -pu -r2001.1 -r2001.1.0.1 --- northamerica 2001/03/13 17:57:40 2001.1 +++ northamerica 2001/04/01 10:08:58 2001.1.0.1 @@ -280,40 +280,47 @@ Zone America/Los_Angeles -7:52:58 - LMT # Alaska # AK%sT is the modern abbreviation for -9:00 per USNO. # -# From Paul Eggert (1995-12-19): +# From Paul Eggert (2001-04-01): # Howse writes that Alaska switched from the Julian to the Gregorian calendar, # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia. -# This was on 1867-10-18. We omit this transition, since we can't represent -# changes from Julian to Gregorian. +# This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian, +# also a Friday. Include only the time zone part of this transition, +# ignoring the switch from Julian to Gregorian, since we can't represent +# the Julian calendar. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Juneau -8:57:41 - LMT 1900 Aug 20 12:00 +Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 + -8:57:41 - LMT 1900 Aug 20 12:00 -8:00 - PST 1942 -8:00 US P%sT 1946 -8:00 - PST 1969 -8:00 US P%sT 1983 Oct 30 2:00 -9:00 US AK%sT -Zone America/Yakutat -9:18:55 - LMT 1900 Aug 20 12:00 +Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 + -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 -9:00 US Y%sT 1946 -9:00 - YST 1969 -9:00 US Y%sT 1983 Oct 30 2:00 -9:00 US AK%sT -Zone America/Anchorage -9:59:36 - LMT 1900 Aug 20 12:00 +Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18 + -9:59:36 - LMT 1900 Aug 20 12:00 -10:00 - CAT 1942 -10:00 US CAT/CAWT 1946 -10:00 - CAT 1967 Apr -10:00 - AHST 1969 -10:00 US AH%sT 1983 Oct 30 2:00 -9:00 US AK%sT -Zone America/Nome -11:01:38 - LMT 1900 Aug 20 12:00 +Zone America/Nome 12:58:21 - LMT 1867 Oct 18 + -11:01:38 - LMT 1900 Aug 20 12:00 -11:00 - NST 1942 -11:00 US N%sT 1946 -11:00 - NST 1967 Apr -11:00 - BST 1969 -11:00 US B%sT 1983 Oct 30 2:00 -9:00 US AK%sT -Zone America/Adak -11:46:38 - LMT 1900 Aug 20 12:00 +Zone America/Adak 12:13:21 - LMT 1867 Oct 18 + -11:46:38 - LMT 1900 Aug 20 12:00 -11:00 - NST 1942 -11:00 US N%sT 1946 -11:00 - NST 1967 Apr @@ -1138,6 +1145,16 @@ Zone America/Dawson_Creek -8:00:56 - LMT # From Paul Eggert (2000-12-04): # Let's just keep track of the official times for now. +# From Rives McDow (2001-03-07): +# The premier of Nunavut has issued a ministerial statement advising +# that effective 2001-04-01, the territory of Nunavut will revert +# back to three time zones (mountain, central, and eastern). Of the +# cities in Nunavut, Coral Harbor is the only one that I know of that +# has said it will not observe dst, staying on EST year round. I'm +# checking for more info, and will get back to you if I come up with +# more. +# [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).] + # 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 @@ -1155,19 +1172,21 @@ Zone America/Pangnirtung -4:22:56 - LMT -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 -5:00 Canada E%sT 1999 Oct 31 2:00 -6:00 Canada C%sT 2000 Oct 29 2:00 - -5:00 - EST + -5:00 Canada E%sT 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 - EST + -5:00 Canada E%sT Zone America/Rankin_Inlet -6:08:40 - LMT 1884 -6:00 NT_YK C%sT 2000 Oct 29 2:00 - -5:00 - EST + -5:00 - EST 2001 Apr 1 3:00 + -6:00 Canada C%sT Zone America/Cambridge_Bay -7:00:20 - LMT 1884 -7:00 NT_YK M%sT 1999 Oct 31 2:00 -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 - EST 2000 Nov 5 0:00 - -6:00 Canada C%sT + -6:00 - CST 2001 Apr 1 3:00 + -7:00 Canada M%sT Zone America/Yellowknife -7:37:24 - LMT 1884 -7:00 NT_YK M%sT Zone America/Inuvik -8:54:00 - LMT 1884 @@ -1294,16 +1313,25 @@ Zone America/Dawson -9:17:40 - LMT 1900 # James F. Smith writes in today's LA Times # </a> # * Sonora will continue to observe standard time. -# * Border states including Baja California, Chihuahua, and Nuevo Leon -# will use US rules, # * Last week Mexico City's mayor Andres Manuel Lopez Obrador decreed that # the Federal District will not adopt DST. # * 4 of 16 district leaders announced they'll ignore the decree. # * The decree does not affect federal-controlled facilities including # the airport, banks, hospitals, and schools. # -# For now we'll assume that the Federal District will bow to federal rules -# and that border states and Durango will stick with US rules. +# For now we'll assume that the Federal District will bow to federal rules. + +# From Jesper Norgaard (2001-04-01): +# I found some references to the Mexican application of daylight +# saving, which modifies what I had already sent you, stating earlier +# that a number of northern Mexican states would go on daylight +# saving. The modification reverts this to only cover Baja California +# (Norte), while all other states (except Sonora, who has no daylight +# saving all year) will follow the original decree of president +# Vicente Fox, starting daylight saving May 6, 2001 and ending +# September 30, 2001. +# References: "Diario de Monterrey" <www.diariodemonterrey.com/index.asp> +# Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2000-03-31) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mexico 1939 only - Feb 5 0:00 1:00 D @@ -1333,8 +1361,7 @@ Zone America/Merida -5:58:28 - LMT 1922 Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44 -6:00 - CST 1988 -6:00 US C%sT 1989 - -6:00 Mexico C%sT 2001 - -6:00 US C%sT + -6:00 Mexico C%sT # Central Mexico Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 -7:00 - MST 1927 Jun 10 23:00 @@ -1353,8 +1380,7 @@ Zone America/Chihuahua -7:04:20 - LMT 19 -6:00 - CST 1996 -6:00 Mexico C%sT 1998 -6:00 - CST 1998 Apr Sun>=1 3:00 - -7:00 Mexico M%sT 2001 - -7:00 US M%sT + -7:00 Mexico M%sT # Sonora Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08 -7:00 - MST 1927 Jun 10 23:00 =================================================================== RCS file: RCS/tz-link.htm,v retrieving revision 2001.1 retrieving revision 2001.1.0.1 diff -pu -r2001.1 -r2001.1.0.1 --- tz-link.htm 2001/03/13 17:57:44 2001.1 +++ tz-link.htm 2001/04/01 10:08:58 2001.1.0.1 @@ -51,9 +51,10 @@ the code is in the file <samp>tzcode<var where <samp><var>C</var></samp> is the code's version; similarly, the data are in <samp>tzdata<var>D</var>.tar.gz</samp>, where <samp><var>D</var></samp> is the data's version. -The code lets you compile the text data into time zone files, one for -each location. It also lets you read a compiled time zone file and -interpret time stamps for that location.</p> +The code lets you compile the <samp>tz</samp> source files into +machine-readable binary files, one for each location. It also lets +you read a <samp>tz</samp> binary file and interpret time stamps for that +location.</p> <p> The data are by no means authoritative. If you find errors, please send changes to the <a href="mailto:tz@elsie.nci.nih.gov">time zone @@ -92,17 +93,36 @@ holidays.</li> is a web interface to a time zone database derived from <samp>tz</samp>'s.</li> </ul> -<h2>Other time zone file readers</h2> +<h2>Other <samp>tz</samp> compilers</h2> +<ul> +<li><a href="http://www.karuna.freeserve.co.uk/vzic.tgz">Vzic</a> +compiles <samp>tz</samp> source into VTIMEZONE text as specified by +the <a href="ftp://ftp.isi.edu/in-notes/rfc2445.txt">iCalendar</a> +specification published by the <a +href="http://www.ietf.org/html.charters/calsch-charter.html">IETF +Calendaring and Scheduling Working Group</a>. Vzic is freely +available under the <a href="http://www.gnu.org/copyleft/gpl.html">GNU +General Public License (GPL)</a>.</li> +<li>Possible XML schemata for the <samp>tz</samp> data include <a +href="http://www.w3.org/2000/01/foo">one</a> sketched out by <a +href="http://www.w3.org/People/Berners-Lee/">Tim Berners-Lee</a> and +<a +href="http://developer.iplanet.com/docs/wpapers/calendar/ietf.txt">another</a> +used by the <a +href="http://www.iplanet.com/products/iplanet_calendar/">iPlanet +Calendar Server</a>.</li> +</ul> +<h2>Other <samp>tz</samp> binary file readers</h2> <ul> <li>The <a href="http://www.gnu.org/software/libc/">GNU C Library</a> has an independent, thread-safe implementation of -a time zone file reader that is compatible with <samp>tz</samp>. +a <samp>tz</samp> binary file reader. This library is freely available under the <a href="http://www.gnu.org/copyleft/lesser.html"> GNU Lesser General Public License (LGPL)</a>, and is widely used in GNU/Linux systems.</li> <li><a href="http://www.bmsi.com/java/#TZ">ZoneInfo.java</a> -is a time zone file reader written in Java. +is a <samp>tz</samp> binary file reader written in Java. It is freely available under the GNU LGPL.</li> </ul> <h2>Other <samp>tz</samp>-based time zone conversion software</h2> @@ -164,9 +184,7 @@ currently observes a different time.</li <li>Manifold.net's <a href="http://www.manifold.net/download/freemaps.html">Free Maps and GIS Data</a> includes a Manifold-format map of world time zone -boundaries distributed under the <a -href="http://www.gnu.org/copyleft/gpl.html">GNU General Public License -(GPL)</a>. The GeoCommunity's <a +boundaries distributed under the GPL. The GeoCommunity's <a href="http://software.geocomm.com/data/intl_timezones.html">International Time Zones</a> publishes the same data in other formats.</li> <li>The US Geological Survey's National Atlas of the United States @@ -186,6 +204,9 @@ Time of Internet</a> contains good descriptions of Time Zones and daylight saving time, with diagrams. The time zone map is out of date, however.</li> +<li><a href="http://www.phys.uu.nl/~vgent/idl/idl.htm">A History of +the International Date Line</a> tells the story of the most important +time zone boundary.</li> <li>A few countries have well-documented histories of legal time. <dl> <dt>Australia</dt> @@ -211,6 +232,10 @@ hreflang="he">announcements (in Hebrew)< Congress has published a <a href="http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/" hreflang="es">history of Mexican local time (in Spanish)</a>.</dd> +<dt>Netherlands</dt> +<dd><a href="http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm" +hreflang="nl">De wettelijke tijdregeling in Nederland (in Dutch)</a> +covers the history of local time in the Netherlands from ancient times.</dd> <dt>United Kingdom</dt> <dd><a href="http://student.cusu.cam.ac.uk/~jsm28/british-time/">History of

4 3

Add to Distro for DST Updates/Changes
by Sue Harrington April 3, 2001

April 3, 2001

Hello, My name is Sue Harrington and I am a Product Development manager for WorldCom. I understand that this is the mail ID that I need to send a request to to be added to the distro that receives changes and updates to the Daylight Savings Time Data Source. Our conferencing group currently uses your source for DST and we would like to use it as well for a project I am working on. Can you please add myself Sue.Harrington(a)WCom.Com and Michael.Pannell(a)WCom.Com to the distro to receive this changes and updates? Please feel free to contact me at 719-535-1681 if you have any questions. Thank you! Sue Harrington

1 0

When
by Lowary111＠aol.com April 1, 2001

April 1, 2001

when does it start

1 0

Mexico sticks to Fox' time
by Jesper Nørgaard April 1, 2001

April 1, 2001

In the last minute before USA changes from Standard time to Daylight time, I found some references to the mexican application of daylight saving, which modifies what I had already sent you, stating earlier that a number of northern mexican states would go on daylight saving. The modification reverts this to only cover Baja California (Norte), while all other states (except Sonora, who has no daylight saving all year) will follow the original decree of president Vicente Fox, starting daylight saving May 6, 2001 and ending September 30, 2001. As the Supreme Court case of the head of Government of Distrito Federal, Andres Manuel López Obrador, has not been settled yet, we are still left with doubt what the situation will be right before May 6 (where the court case *must* be decided), and Distrito Federal may decide not to apply daylight saving all year round. I will inform you when I know more about that case. I trawled about 15 Mb of different electronic newspapers of Mexico, and I can recommend you the page http://www.galiciavirtual.net/coruna/prensa/periodicos/sudamerica/mexico.htm which has an big collection of 105 links of this type, if you are interested in mexican electronic news. The first link that gave authoritative information was "Diario de Monterrey", from one of the states (Nuevo León) that was supposed to use daylight saving as US, and not wait until May 6. Unfortunately Diario de Monterrey doesn't allow a direct quote of the page, which also leads to the suspicion that it may not be found the way I found it today, so I included the whole text. I found it by browsing the general page, and then under the heading "Metrópoli" there was a link with text "El horario de verano iniciará el 6 de mayo" ====== Begin Quote from www.diariodemonterrey.com/index.asp ===== El horario de verano iniciará el 6 de mayo por Juan Gerardo Porras El decreto presidencial no fue modificado. La Comisión Nacional para el Ahorro de Energía confirmó ayer los diferentes husos de verano no aplica por lo ya expuesto, y en el caso de Baja California, como ha ocurrido desde hace más de 50 años, inicia este domingo y concluye el último domingo de octubre. "Debido a la aplicación de las cuatro zonas horarias, Baja California tendrá una hora de diferencia con el Distrito Federal del periodo del primer domingo de abril al primer domingo de mayo, y del último domingo de septiembre al último domingo de octubre. El resto del año la diferencia será de dos horas". Se explica que Baja California Sur, Chihuahua, Nayarit y Sinaloa, tendrán siempre una hora de diferencia más temprano con la Ciudad de México. En tanto, Sonora mantendrá dos horas más temprano de diferencia con la capital del país, del primer domingo de mayo al último domingo de septiembre, y una hora el resto del año. A diferencia de años anteriores, en esta ocasión el tema de la aplicación del horario de verano provocó más controversia. Esto por las distintas opiniones de gobernadores de estados fronterizos, así como del jefe del Gobierno del Distrito Federal, Andrés Manuel López Obrador, quien difirió con el presidente Vicente Fox Quesada. Los argumentos que da el gobierno federal son principalmente el ahorro de energía eléctrica a nivel nacional, y las relaciones comerciales con los Estados Unidos de Norteamérica. Diario Por zonas En Nuevo León Periodo: Del 6 de mayo al 30 de septiembre. (Cinco meses). En Baja California Periodo: Del 1 de abril al 31 de octubre. (Siete meses). En Sonora No se aplicará el horario de verano. Las diferencias * Del 1 de abril al 6 de mayo, Baja California tendrá una hora de diferencia con respecto al horario del Distrito Federal. El resto del año será de dos horas. * Baja California Sur, Chihuahua, Nayarit y Sinaloa tendrán siempre una hora más temprano de diferencia con la capital del país. * Nuevo León y el resto de los estados, con excepción de Sonora y los ya mencionados, no tendrán diferencia con el horario del Distrito Federal. ====== End Quote from www.diariodemonterrey.com/index.asp ===== I also found another confirmation of this definition of how daylight saving will function in Mexico this year, which has the same definition, but doesn't mention the release from the Energy Commission of Mexico. The newspaper "Palabra" from Coahuila can be found on http://palabra.infosel.com/ ... and under "Nacional" you can download portada file "http://palabra.infosel.com/010331/primera/ppri3101.pdf" which has a nice map of the current situation. I send a smaller file with just the bitmap of the article cut out. If the original file is not directly available later, you can ask me to send it to you or put it up on a general web page. Under "-Negocios" portada file "http://palabra.infosel.com/010331/primera/pneg3113.pdf" gives the full story which was mentioned in the previous PDF file, and also has some interesting points about customs offices and the mexican stock exchange which will change their working hours in the period where there is difference between US and mexican states (e.g. until May 6, 2001) so as to compensate for the difference in actual time. Regards, Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Programador/Analista CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my free program World Time Explorer: http://timezone50.homepage.com

1 0

EU directive
by Joseph S. Myers March 31, 2001

March 31, 2001

Since this doesn't seem to have been mentioned here yet: the latest Summer Time Directive (Directive 2000/84/EC of the European Parliament and of the Council of 19 January 2001 on summer-time arrangements) was published in the Official Journal of the European Communities on the 2nd of February, providing for dates of last Sunday in March to last Sunday in October on a permanent basis. No sign yet of an order being laid before Parliament to implement this directive in the UK (due to be done by 31 December). http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html 300L0084 Directive 2000/84/EC of the European Parliament and of the Council of 19 January 2001 on summer-time arrangements Official Journal L 031 , 02/02/2001 P. 0021 - 0022 Text: Directive 2000/84/EC of the European Parliament and of the Council of 19 January 2001 on summer-time arrangements THE EUROPEAN PARLIAMENT AND THE COUNCIL OF THE EUROPEAN UNION, Having regard to the Treaty establishing the European Community, and in particular Article 95 thereof, Having regard to the proposal from the Commission(1), Having regard to the opinion of the Economic and Social Committee(2), Acting in accordance with the procedure laid down in Article 251 of the Treaty(3), Whereas: (1) The eighth Directive, 97/44/EC, of the European Parliament and of the Council of 22 July 1997 on summer-time arrangements(4) introduced a common date and time in all Member States, for the beginning and end of summer time in 1998, 1999, 2000 and 2001. (2) Given that the Member States apply summer-time arrangements, it is important for the functioning of the internal market that a common date and time for the beginning and end of the summer-time period be fixed throughout the Community. (3) Since the summer-time period considered most appropriate by the Member States runs from the end of March to the end of October, it is appropriate that that period therefore be maintained. (4) The proper functioning of certain sectors, not only transport and communications, but also other sectors of industry, requires stable, long-term planning. Provisions concerning summer time should therefore be laid down for an unspecified period. Article 4 of Directive 97/44/EC provides, in that respect, that the European Parliament and the Council are to adopt, by 1 January 2001, the arrangements to apply from 2002 onwards. (5) For reasons of clarity and accuracy of information, a timetable for the implementation of the summer-time period for the following five years should be published every five years. (6) Implementation of this Directive should, moreover, be monitored by means of a report, to be presented by the Commission to the European Parliament, the Council and the Economic and Social Committee, on the impact of these provisions in all of the areas concerned. That report should be based on the information made available to the Commission by the Member States in sufficient time to enable the report to be presented at the specified time. (7) Given that the complete harmonisation of the timetable for the summer-time period with a view to facilitating transport and communications cannot be sufficiently achieved by the Member States and can therefore be better achieved at Community level, the Community may take measures, in accordance with the principle of subsidiarity as set out in Article 5 of the Treaty. This Directive does not go beyond what is necessary to achieve those objectives. (8) For geographical reasons, the common summer-time arrangements should not apply to the overseas territories of the Member States, HAVE ADOPTED THIS DIRECTIVE: Article 1 For the purposes of this Directive "summer-time period" shall mean the period of the year during which clocks are put forward by 60 minutes compared with the rest of the year. Article 2 From 2002 onwards, the summer-time period shall begin, in every Member State, at 1.00 a.m., Greenwich Mean Time, on the last Sunday in March. Article 3 From 2002 onwards, the summer-time period shall end, in every Member State, at 1.00 a.m., Greenwich Mean Time, on the last Sunday in October. Article 4 The Commission shall publish a communication in the Official Journal of the European Communities(5), for the first time on the occasion of the publication of this Directive, and every five years thereafter, containing the timetable showing the dates on which the summer-time period will begin and end for the following five years. Article 5 The Commission shall report to the European Parliament, the Council and the Economic and Social Committee on the impact of the provisions of this Directive on the sectors concerned by 31 December 2007 at the latest. That report shall be drawn up on the basis of the information made available to the Commission by each Member State by 30 April 2007 at the latest. The Commission shall, if necessary and following the conclusions of the report, make appropriate proposals. Article 6 This Directive shall not apply to the overseas territories of the Member States. Article 7 Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive by 31 December 2001 at the latest. They shall forthwith inform the Commission thereof. When Member States adopt those measures, they shall contain a reference to this Directive or be accompanied by such a reference on the occasion of their official publication. Member States shall determine how such reference is to be made. Article 8 This Directive shall enter into force on the day of its publication in the Official Journal of the European Communities. Article 9 This Directive is addressed to the Member States. Done at Brussels, 19 January 2001. For the European Parliament The President N. Fontaine For the Council The President B. Ringholm (1) OJ C 337, 28.11.2000, p. 136. (2) Opinion delivered on 29 November 2000 (not yet published in the Official Journal). (3) Opinion of the European Parliament of 12 December 2000 (not yet published in the Official Journal) and Council Decision of 20 December 2000. (4) OJ L 206, 1.8.1997, p. 62. (5) OJ C 35, 2.2.2001. -- Joseph S. Myers jsm28(a)cam.ac.uk

4 7

Remove from list
by Lyn McCarthy March 30, 2001

March 30, 2001

Please remove me from the list lyn(a)internode.on.net.au

1 0

History of the IDL
by R.H. van Gent March 29, 2001

March 29, 2001

Hi all, I am new to this group and I would like to enlist your aid in correcting and augmenting my web site under construction on the history of the International Date Line at: http://www.phys.uu.nl/~vgent/idl/idl.htm I am still adding new material and illustrations to my web site and any comments or suggestions for improvement will be very much appreciated. List members who can read Dutch may also be interested in my web site on the history of legal time in the Netherlands at: http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm which includes an overview of all relevant sources that I have been able to trace with tables for the Daylight Saving period from 1916 to the present (and even further). Regards, ======================================================== * Robert H. van Gent * Tel/Fax: 00-31-30-2720269 * * Zaagmolenkade 50 * * * 3515 AE Utrecht * E-mail: r.h.vangent(a)astro.uu.nl * * The Netherlands * * ******************************************************** * Home page: http://www.phys.uu.nl/~vgent/homepage.htm * ========================================================

1 0

Regional Time Zone:Daylight Savings Time/set clocks ahead 1 hour 3/30/02
by mellowf84＠aol.com March 29, 2001

March 29, 2001

Dear Sirs: I have a new computer which used to be in a different time zone area, I am in upstate NY and am concerned about re-setting my computer properly. I have a Compaq/Windows 98 and cannot figure it out. My time is incorrect. Any advise you could give me would be greatly appreciated. thanks, my e-mail is OldSkool606 @ aol.com thanks again.

1 0

Solaris patched to avoid "ROC" time zone name for political reasons
by Paul Eggert March 29, 2001

March 29, 2001

On Tuesday, Sun released patch 111099-01 for Solaris 8 (x86) entitled "ROC timezone should be avoided for political reasons". This patch creates the zone Asia/Taipei (which is normally not installed in Solaris) and then creates ROC as a link. The patch does not include the source code (in this case, the 'asia' file) so unfortunately I can't report Sun's comments (if any) about the situation. (If Sun were selling to North Korea, I guess "ROK" would be next to go. :-)

1 0

daylight savings time
by YKCA＠aol.com March 29, 2001

March 29, 2001

i live in new york city. on what day,on what date and time does daylight savings time go into effect??? thankyou murray n ackerman

1 0

hi
by WildFlower12257＠aol.com March 27, 2001

March 27, 2001

what time is it in florida

1 0

IERS Message No. 7
by central_bureau＠iers.org March 27, 2001

March 27, 2001

*************************************************************************** IERS Message No. 7 March 27, 2001 *************************************************************************** ITRF Report 4 on local ties Report on local tie problems in colocation sites as result from ITRF2000 Analysis Zuheir Altamimi IERS ITRS Product Center Institut Geographique National, France Date: March 22, 2001 The importance of local ties in space geodetic colocation sites is no longer to be demonstrated. Their impact on the ITRF solutions is very critical since they represent the key element of ITRF combination. Based on ITRF2000 residual analysis, the current situation of local ties is summarized in the following two tables: Table 1: Missing Local Ties: Sites where local ties between some or all points are missing (information is not available at IERS ITRS Product Center). Table 2: Dubious local ties: Sites where local tie estimates differ from Space Geodesy estimates. The current local ties collected by the ITRS-PC since more than 10 years come from heterogeneous sources and do not always contain quality (precision) information, necessary for rigorous ITRF combination. These local ties are used in ITRF combinations as observations with proper variances. In case where these variances are not available, they are computed using a geodetic formula given in ITRF publications. Note that a dubious local tie is declared as such if its ITRF2000 post fit residuaul is larger than or equal to 1 cm. This threshold of 1 cm is the minimum requirement for a global frame aimed to be good to at least 1 ppb level (6 mm over the Earth's surface). Therefore the ITRF2000 residual analysis is a tool to assess their quality or their level of agreement with Space Geodesy estimates. Dubious local ties are due to at least one of the following reasons: - They are imprecise - They are in error - Space Geodesy estimate is imprecise - Space Geodesy estimate is in error Each one of these two tables is sorted in two categories, according to their importance for ITRF: ***: Highly Important Sites, given their geographic location and/or quality of their geodetic instruments. These critical sites are mostly those where local ties between points observed by at least two different techniques are not available (Table 1), respectively dubious (Table 2). This is the case for example of: - Wuhan (China) where the local tie between the SLR and GPS points is not available. - Fairbanks (ALASKA) where the local tie between the VLBI and GPS points is dubious. * : Very Important Sites, given the quality of their geodetic instruments. These sites are those where SOME local ties are not available (resp. dubious). This is the case for example of: - Tromso (Norway) where the new GPS point is not connected to VLBI, SLR, DORIS or the old GPS points. - Wettzell (Germany) where the local tie connecting the SLR point 8834 (S018) is dubious. In order to remedy this situation, it is recommended to initiate efforts starting with Highly important sites. A useful information (per-site residual summary and plots) highlighting the quality of local ties in ITRF2000 colocation sites is available on the web at: http://lareg.ensg.ign.fr/ITRF/ITRF2000/valsit.html Table 1: Missing Local Ties Sites where local ties between some or all points are missing Missing tie per DOMES Site Name Country Imp Technique (Point) ----- ---------------- -------- --- -------------------------------- Highly Important Sites 10317 NY-ALESUND NORWAY *** VLBI(S003 7331) 12309 MENDELEEVO RUSSIA *** SLR(S001 1870), GPS(M002 MDVO) 12329 YUZHNO-SAKHALINS RUSSIA *** GPS(M003 YSSK), DORIS(S001 SAKA) 12337 SIMEIS UKRAINE *** SLR(M001 7561), SLR(S003 1873) SLR(S006 1893), VLBI(S008 7332) 21602 WUHAN CHINA *** SLR(S003 7236), GPS(M001 WUHN) 21605 SHANGHAI CHINA *** GPS(M002 SHAO), VLBI(S008 7226) 21609 KUNMING CHINA *** GPS(M001 KUNM), SLR(S002 7820) 21612 URUMQI CHINA *** GPS(M001 URUM), VLBI(S001 7330) 21701 KASHIMA JAPAN *** SLR(M002 7335), VLBI(S001 1856) VLBI(S004 1857), VLBI(S006 7334) 21704 KOGANEI JAPAN *** SLR(M001 7328), SLR(S002 7308) S002(S004 7327) 21729 USUDA JAPAN *** VLBI(S001 7246), GPS(S007 USUD) 23903 SUWN-SHI S. KOREA *** GPS(M001 SUWN), VLBI(S001 7353) 21733 MINAMI TORI SIMA JAPAN *** SLR(S001 7300), VLBI(S002 7310) 21739 MIURA JAPAN *** SLR(M001 7337), VLBI(S001 7336) 21740 TATEYAMA JAPAN *** SLR(M001 7339), VLBI(S001 7338) 30302 HARTEBEESTHOEK S.AFRICA *** SLR(M003 7501) 40403 PALOS VERDES USA *** VLBI(M001 7268), GPS(M002 PVEP) 40419 KODIAK USA *** VLBI(M001 7278), GPS(S001 KOD1) 42501 BERMUDA USA *** SLR(M001 7067), VLBI(M002 7294) GPS(S004 BRMU) Very Important Sites 10302 TROMSO NORWAY * GPS(M006 TRO1) 12302 RIGA LATVIA * SLR(S006 1885) 12725 CAGLIARI ITALY * SLR(S013 7548) 13402 SAN FERNANDO SPAIN * SLR(S007 7824) 14201 WETTZELL GERMANY * SLR(M200 7594), VLBI(S100 7593) 21730 TSUKUBA JAPAN * VLBI(S007 7345) 21732 CHICHIJIMA JAPAN * VLBI(S004 7347) 40405 GOLDSTONE USA * GPS(S031 GOLD, current IGS point, Post-Landers) 40437 MAMMOTH LAKES USA * (M001 7259), (M002 CASA) Mobile VLBI - GPS ~4km 40439 OWENS VALLEY USA * VLBA(S006 7616) 40451 WASHINGTON USA * GPS(S003 USNO) 40492 VERNAL USA * SLR(M001 7892), VLBI(M002 7290) (Destroyed) 40499 RICHMOND USA * VLBI(S019 7201), GPS(S020 RCM6) Table 2: Dubious Local Ties --------------------------- DOMES Site Name Country Imp Techniques/points Delta (cm) ----- -------------- -------- --- ---------------------------------- ----- Highly Important Sites 10204 HOFN ICELAND *** VLBI(M001 7635)/GPS(M002 HOFN) 10 12717 NOTO ITALY *** VLBI(7547 S001)/GPS(M003 NOTO) 1 12734 MATERA ITALY *** VLBI(7234 S005)/GPS(M008 MATE) 1 13402 SAN FERNANDO SPAIN *** SLR(S004 7824)/GPS(M004 SFER) 5 13407 MADRID SPAIN *** GPS(MADR S012)/VLBI(1565 S010) 1 20805 ANKARA TURKEY *** SLR(M001 7589)/GPS(M002 ANKR) 30 21601 BEIJING CHINA *** GPS(M001 BJFS)/SLR(S004 7249) 5 21605 SHANGHAI CHINA *** SLR(S001 7837)/VLBI(S009 7227) 5 21732 CHICHIJIMA JAPAN *** VLBI(S001 7316)/SLR(S002 7844) 50 30302 HARTEBEESTHOEK S.AFRICA *** GPS(HART M002, HARK M007, HRAO M004) 1 DORIS(HBLA S005, HBKA S202) 1 40104 ALGONQUIN CANADA *** VLBI(7282 S001)/GPS(ALGO M002) 1 40408 FAIRBANKS USA *** GPS(FAIR M001)/VLBI(7225 S002) 2 GPS/DORIS(FAIA S004, FAIB S005) 1 40440 WESTFORD USA *** VLBI(S003 7209)/GPS(S020 WES2) 2 40451 GREENBELT USA *** GPS(GODE M123)/Other site points 1 50501 GUAM USA *** GPS(GUAM M002)/DORIS(GUAB S001) 3 66006 SYOWA ANTARTICA *** VLBI(7342 S004)/GPS + DORIS 5 66007 ROTHERA ANTARTICA *** GPS(ROT1 M001)/DORIS(ROTA S001) 7 66008 O'HIGGINS ANTARTICA *** VLBI(S001 7245)/GPS(M001 OHIG) 3 91501 PETRELS Is. TERRE ADELIE *** GPS(DUM1 M001)/DORIS(ADEA S001) 3 97301 KOUROU FRENCH GUIANA *** GPS(KOUR M210)/DORIS(KRUB S004) 5 Very Important Sites 10317 NY-ALESUND NORWAY * GPS(NYA1 M003) 2 14201 WETTZELL GERMANY * SLR(8834 S018)/Other site points 1 40405 GOLDSTONE USA * SLR(7085 M001, 7115 M002, 7265 M006) VLBI(1514 S001, 7222 S009, 1513 S014, 1515 S019), DORIS(GOMA S005) 1-5 40439 OWENS VALLEY USA * VLBI(7207 S002)/Other site points 2 40499 RICHMOND USA * VLBI(7219 S001)/GPS(RCM5 S018) 1 ___________________________________________________________________________ R: VLBI, L: SLR, P: GPS, D: DORIS Delta : Difference between local tie and Space Geodesy estimate ***************************************************************************

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Question about US TZ rules (Possible error in the data)
by Zane Appel March 25, 2001

March 25, 2001

Hello, Please see the data below from your latest data release (2001a): # From Arthur David Olson (2000-09-25): # Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama. # In the introduction, Oboler spoke of "Eastern Peace Time." # An AltaVista search turned up # <a href="http://rowayton.org/rhs/hstaug45.html">: # "When the time is announced over the radio now, it is 'Eastern Peace # Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful." # </a> (August 1945) by way of confirmation. # 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 I am confused about the rule for 1942 above (with asterisk.) Since the paragraph above says that they started calling it 'Eastern Peace Time' in 1945 doesn't that imply that the 1942 rule was in effect from 1942 to 1945 and not 1942 only? Thanks in Advance, Zane Appel

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(no subject)
by Mosb40＠aol.com March 25, 2001

March 25, 2001

when does ohio switch to savings time

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dst reference in "Animal Crackers"
by Will Fitzgerald March 24, 2001

March 24, 2001

Groucho Marx, as Captain Spaulding: "We're been using the five-cent nickle in this country since 1492. Now that's pretty near 100 years, daylight savings."

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Updated Australian time zone names/strings
by David J N Begley March 22, 2001

March 22, 2001

To whom it may concern... Summary: I'd like to request the "EST/EST" time zone strings for Australian eastern standard and summer/daylight-savings time be changed to "AEST/AEDT", given that "EST/EST": - clashes with an existing U.S. time zone; - gives no indication of the difference between standard/d'light savings; - is unnecessarily confusing; - is incorrectly quoted from the time zone database as authoritative; and, - does not necessarily gel with "common practice" in Australia. Whilst it is arguable exactly what string/abbreviation should be used in the absence of formal standards, I present "common usage" examples below and argue that at the very least, the abbreviations for standard and daylight savings time should be *different*. Detail: Checking the tzdata2001a archive (and various UNIX systems), Australian eastern time zones (particularly "Australia/Sydney") use the time zone string "EST" for both standard and summer/daylight-savings time. Notionally, this is just a visual issue that doesn't really bring the IT industry to its knees if it's wrong since most decent systems work directly on the UTC offset instead. However, some systems use the time zone database as an "expert reference" from which to extrapolate incorrect information - it is this that triggered my submission to you. For example, the time zone database includes the following comment: # From John Mackin (1991-03-06): # We in Australia have _never_ referred to DST as `daylight' time. # It is called `summer' time. Now by a happy coincidence, `summer' # and `standard' happen to start with the same letter; hence, the # abbreviation does _not_ change... I can't speak for Mr Mackin's direct experience, but I can most certainly contest the assertion that, "We in Australia have _never_ referred to DST as `daylight' time" - certainly everyone I know (and myself, of course) have always used the term "daylight savings" rather than "summer time". I've used UNIX systems for years so to a certain degree I'm used to this "error" in the time zone database; however, now that people are using the database as an authoritative resource (despite the comments in the file to the contrary), I thought it only fair to request a correction (in the hope that those relying on the database will in turn correct their information). Mr Mackin continues: # The legislation does not actually define abbreviations, at least # in this State, but the abbreviation is just commonly taken to be the # initials of the phrase, and the legislation here uniformly uses # the phrase `summer time' and does not use the phrase `daylight # time'. Unfortunately Mr Mackin does not indicate to what State he refers, but in *this* State (New South Wales - NSW), the relevant legislation clearly uses both terms (summer time and daylight savings) interchangeably; for reference, see the Standard Time Act 1987 (NSW), which *predates* Mr Mackin's comment: "New South Wales Consolidated Acts - STANDARD TIME ACT 1987" http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/ Whilst the Act clearly defines "standard time" and "summer time", it also makes specific mention of "daylight saving": - the long title of the legislation is: "An Act relating to standard time and daylight saving in New South Wales." - part 3 of the Act, talking about summer time, is in fact entitled: "PART 3 - DAYLIGHT SAVING" For further evidence of the use of the term "daylight saving", see: "Time in New South Wales" (NSW Attorney General's Department) http://www.lawlink.nsw.gov.au/crd.nsf/pages/time1 "Daylight Saving in New South Wales" (NSW Department of Public Works and Services) http://dir.gis.nsw.gov.au/cgi-bin/genobject/document/other/daylightsaving/t… "When does daylight savings start in Australia?" (National Standards Commission) http://www.nsc.gov.au/PAGES/Info/info_faq.html#Daylight Savings "Daylight Saving" (National Standards Commission) http://www.nsc.gov.au/PDF_WORD/Info/IL27.pdf Clearly, the assertion that Australia always uses the term "summer time" instead of "daylight time" or "daylight savings" (and therefore, the time zone abbreviations must be the same) is *incorrect*. The confusion arises because in Australia it is the States (not the Federal/national government) that legislate time changes during the summer months; whilst technically it is a federal responsibility under the constitution (as a measure related to commerce), the parliament has never really been able to pass legislation on the matter due to the fear that the States would see this as removing some of their legislative powers (see Hansard, Commonwealth House of Representatives, 1991). Subsequently, there is no standard name for time zones or summer clock shifts just "common use" (for various definitions of "common") that sometimes vary from State to State. In the media you will experience all manner of phrases used such as "Eastern Time", "Summer Time", "Sydney Time" and numerous other variants; for example, C&W Optus (a large telco) uses abbreviations such as "AEDST" when referring to Australian eastern daylight savings time. I suspect, apart from Mr Mackin's comments above, that the local use of the phrase "Eastern Standard Time" (which is clearly local in context) is what has led to the use of the ambiguous "EST" in the time zone database. More recently, however, the media is recognising the global context (rather than local) and starting to prefix time zone references with "Australian" (more on this below). As noted above, this confusing lack of standards, local phrases and personal experiences have found their way into the time zone database, into nearly every UNIX system (well...) and has now created even more confusion, especially as some people start to quote the time zone database as authoritative. For example: "Australian time zones and their naming variants account for fully one quarter of all time zones in the Postgres time zone lookup table." http://www.postgresql.org/users-lounge/docs/7.0/user/datetime-appendix.htm (Caused by wierd variants - many of which I must admit to never having seen in use - to the ambiguous "EST". Also note that they recognise "AEST".) More of a concern, is this: "4.5. The timezone string for Sydney/Australia is wrong since even when daylight saving time is in effect the timezone string is EST. "{UD} The problem for some timezones is that the local authorities decided to use the term 'summer time' instead of 'daylight saving time'. In this case the abbreviation character `S' is the same as the standard one. So, for Sydney we have Eastern Standard Time = EST Eastern Summer Time = EST Great! To get this bug fixed convince the authorities to change the laws and regulations of the country this effects. glibc behaves correctly." http://www.gnu.org/software/libc/FAQ.html This is clearly based on Mr Mackin's comment in the time zone database, and as I have demonstrated is wrong (in terms of the legislation and government use). Unfortunately, despite the evidence, the glibc authors simply point to the time zone database as authoritative and allow this error to continue. glibc is *not* behaving correctly, nor is the time zone database (but to correct glibc I need to get the time zone database updated). So.. by this time I hope I've demonstrated that it *is* legitimate (and correct) to use a different abbreviation for daylight savings/summer time; all that remains is to demonstrate why I've chosen "AEST" and "AEDT" to replace "EST" for standard and daylight savings time respectively. Well, ignoring my own use of these abbreviations, some "common use" includes: - Australian Broadcasting Corporation <http://www.abc.net.au/news/> - Browse the ABC News site and see the instances of "AEST" and "AEDT" (even "ACST" and "AWST" for central and western standard time) in reference to eastern standard or eastern summer time depending on whether that particular State observes daylight savings or not. - In particular, see the "Posted" timestamps at: <http://www.abc.net.au/news/state/nsw/default.htm> - The home page currently has a timestamp (towards page top-right) of: "This Bulletin: Thu, Mar 22 2001 4:15 PM AEDT". - Even at the bottom of the first news page is the explanation of "AEDT" (which may disappear this weekend when DST ends in NSW): "AEDT = Australian Eastern Daylight Time which is 11 hours ahead of UTC (Greenwich Mean Time)" - These pages also appear in a search of the Commonwealth Government's <http://www.fed.gov.au/> Web site. - Australian Department of Defence <http://www.defence.gov.au/> - See various media releases, for example, referring to times in either "AEST" or "AEDT", including: <http://www.defence.gov.au/media/1997/05797.html> <http://www.defence.gov.au/media/1997/01197.html> - National Library of Australia <http://www.nla.gov.au/> - Search their Web site for "AEST", references to contacting them give times in this time zone: <http://www.nla.gov.au/dss/libraries_os.html#express> - Australian Taxation Office (ATO) - http://www.ato.gov.au/content.asp?doc=/content/tax_reform/nat3402.htm - Australian Football League (AFL) - Fixture times: <http://www.afl.com.au/matches/season_111.htm> - Australian Cricket Board (ACB) - Live game coverage: <http://www-aus.cricket.org/link_to_database/NATIONAL/AUS/MATCHES/> - "The Australian" (and other Murdoch/News-owned newspapers) - Example: <http://australianit.news.com.au/common/storyPage/0,3811,902553%255E2184,00.…> - You have to "view source" to see the "Updated...AEST" - Visible at the very bottom, "All times AEDT" - Other (small sample) - NineMSN's News service <http://www.news.ninemsn.com.au/> (notice current time given in AEDT) - "...each fortnightly Sunday morning at 8am AEST/AEDT" http://news.ninemsn.com.au/smallbusiness/help/help9.asp - AAP IS/News, as viewed through <http://au.dailynews.yahoo.com/> (pick AAP-sourced articles and notice times in "AEDT" and "AEST") The examples go on and on. As you can see, it is not just government sites using the time zones "AEST" and "AEDT" in this manner. An argument could probably be mounted to have all the Australian time zones altered accordingly (probably along the lines used by the ABC and The Australian), but it's mainly the Australia/Sydney time zone that interests me at present. I hope this is sufficient information/examples for consideration, but would be happy to provide further info/examples if necessary. Thanks for your consideration (and sorry for this being so long); hope to hear your comments soon. Cheers.. dave

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Time Zones
by Ana Peterson March 19, 2001

March 19, 2001

Hi, is there an official Time Zone list? If so, where can I find it? Thanks in advance. -acp This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of J.P. Morgan Chase & Co., its subsidiaries and affiliates.

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IERS Message No. 6
by central_bureau＠iers.org March 19, 2001

March 19, 2001

*************************************************************************** IERS Message No. 6 March 19, 2001 *************************************************************************** IERS' Global Geophysical Fluids Center (GGFC) and Special Bureaus Websites Going to Business The Global Geophysical Fluids Center has made public its official Internet Website <http//bowie.gsfc.nasa.gov/ggfc/>, located at NASA's Goddard Space Flight Center, with an Europe mirror site in Strasburg, France <http//ggfc.u-strasbg.fr> (an Asian mirror site is under preparation). The seven Special Bureaus (SB) can be readily linked. The SBs, under the coordination of GGFC, have the responsibility of supporting, facilitating, and providing services to the worldwide research community, in areas related to the variations in Earth rotation, gravitational field and geocenter motion that are caused by mass transport in the geophysical fluids. The geophysical fluids of the Earth system include the atmosphere, ocean, solid Earth, and core, and geophysical processes associated with tides and hydrological cycles. The time variation of angular momenta and the related torques, gravitational coefficients, and geocenter shift will be computed for all geophysical fluids based on global observational data, and/or products from state-of-the-art models some of which assimilate such data. The computed quantities, algorithm and data formats will be standardized. The results will be archived and made available to the scientific research community. The SBs will maintain individual data archives and services. The Websites are the main conduits for these services. The present organization of the Global Geophysical Fluids Center is: GGFC Head: Benjamin F. Chao Space Geodesy Branch, Code 926 NASA's Goddard Space Flight Center (GSFC) Greenbelt, Maryland 20771, USA e-mail: <chao(a)bowie.gsfc.nasa.gov> SPECIAL BUREAUS ATMOSPHERE (SBA) Head: D. A. Salstein Atmospheric and Environmental Research (AER) OCEANS (SBO) Head: R. S. Gross Jet Propulsion Laboratory (JPL) TIDES (SBT) Head: R. D. Ray GSFC Laboratory For Terrestrial Physics (LTP) HYDROLOGY (SBH) Head: C. R. Wilson University of Texas (UT) MANTLE (SBM) Head: B. F. Chao GSFC Laboratory For Terrestrial Physics (LTP) CORE (SBC) Head: V. Dehant Royal Observatory of Belgium (ROB) GRAVITY/GEOCENTER (SBGG) Head: M. M. Watkins Jet Propulsion Laboratory (JPL) For more detail please see: Chao, B. F., V. Dehant, R. S. Gross, R. D. Ray, D. A. Salstein, M. M. Watkins, and C. R. Wilson, Space geodesy monitors mass transports in global geophysical fluids, EOS, Trans. Amer. Geophys. Union, 81, 247-250, May 30, 2000. A PDF file of this article is posted on the GGFC Website (see above), courtesy of AGU. Hard-copy reprints are also available by contacting any of the people above. Several GGFC business meetings (some open to public) as well as co-sponsored technical special sessions have been held at international conferences. The upcoming open meeting will be held at EGS2001 Assembly in Nice (on Thursday, March 29, 2001, 6 pm, Room M11 of Congress Center), in association with Geodesy Symposium G3, "Time variable geodetic parameters and global geophysical fluids processes". --------------------------------------------------------------------------- Dr. Benjamin Fong Chao Head, Space Geodesy Branch, Code 926 NASA's Goddard Space Flight Center Greenbelt, Maryland 20771, USA phone: 301-614-6104, fax: 301-614-6099 e-mail: chao(a)bowie.gsfc.nasa.gov ***************************************************************************

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FW: Real time access to time zone/daylight savings time
by Olson, Arthur David (NCI) March 19, 2001

March 19, 2001

Tony Conti is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: Tony Conti [mailto:TConti@hfcc.net] Sent: Wednesday, March 14, 2001 9:07 AM To: tz(a)elsie.nci.nih.gov Subject: Real time access to time zone/daylight savings time I have a VB application that needs real time access to time zones and daylight savings time. Is there an ActiveX object that can provide me the GMT value given the country, city and date parameters????

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IERS Message No. 5
by central_bureau＠iers.org March 19, 2001

March 19, 2001

*************************************************************************** IERS Message No. 5 March 19, 2001 *************************************************************************** Dear Colleagues, The ITRF2000 Primary Solution is now available on the WEB at: http://lareg.ensg.ign.fr/ITRF/ITRF2000/ The remaining densification parts will be added as soon as possible. The IERS ITRS Product Center thank all the Analysis Centers as well as the ITRF Working Group for their valuable contribution to this project. For any question, please contact: itrf(a)ensg.ign.fr Sincerely yours, Claude Boucher and Zuheir Altamimi, IERS ITRS-PC ***************************************************************************

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