- tz - lists.iana.org

End of Rio hiccup
by ado Feb. 2, 1993

Feb. 2, 1993

Again forwarded from comp.protocols.time.ntp. Since the article does not report just when the mayor turned the watch back, I'll forego making a Hawaii-style change to the southamerica file. --ado > From emv(a)msen.com Tue Feb 2 12:43:49 1993 > Path: nih-csl!darwin.sura.net!paladin.american.edu!howland.reston.ans.net!usc!sdd.hp.com!nigel.msen.com!emv > From: emv(a)msen.com (Edward Vielmetti) > Newsgroups: comp.protocols.time.ntp > Subject: Re: [brazil-time] rio de janeiro asks 'what time is it ?' > Message-ID: <1kmbt3INN36j(a)nigel.msen.com> > Date: 2 Feb 93 17:43:49 GMT > References: <1kkdseINNn87(a)nigel.msen.com> > Distribution: inet > Organization: Msen, Inc. -- Ann Arbor, Michigan > Lines: 29 > NNTP-Posting-Host: garnet.msen.com > X-Newsreader: TIN [version 1.1 PL8] > > Edward Vielmetti (emv(a)msen.com) wrote: > : Clock watchers take note... > > Ah, the time crisis in Brazil has passed (this also from REUTER). > > AM-BRAZIL-TIME 1STLD > RIO MAYOR RELUCTANTLY GIVES UP EXTRA HOUR OF DAYLIGHT > > (Eds: updates) > RIO DE JANEIRO, Brazil, Reuter - The mayor of Rio has > reluctantly agreed to set the city's clocks back one hour, > ending his defiance of a federal regulation to end summer > daylight saving time. > Mayor Cesar Maia turned his own watch back one hour Monday > after meeting Brazilian President Itamar Franco. > ``Now the Rio mayor and the president's watches are set for > the same time,'' Maia said. > He had ordered city workers to continue on the summer > schedule until Feb. 28, saying Rio's tourist industry needed the > extra hour of daylight. > But Rio banks, businesses, airports, bus stations, stock > market and major companies operated by the federal government's > time -- three hours behind Greenwich Mean Time-- causing great > confusion. > REUTER > > Edward Vielmetti, vice president for research, Msen Inc. emv(a)Msen.com > Msen Inc., 628 Brooks, Ann Arbor MI 48103 +1 313 998 4562 (fax: 998 4563)

1 0

Local time hiccup in Brazil
by ado Feb. 2, 1993

Feb. 2, 1993

The attached from comp.protocols.time.ntp. --ado > From emv(a)msen.com Mon Feb 1 19:05:20 1993 > Path: nih-csl!darwin.sura.net!newsserver.jvnc.net!yale.edu!nigel.msen.com!emv > From: emv(a)msen.com (Edward Vielmetti) > Newsgroups: comp.protocols.time.ntp > Subject: [brazil-time] rio de janeiro asks 'what time is it ?' > Message-ID: <1kkdseINNn87(a)nigel.msen.com> > Date: 2 Feb 93 00:05:20 GMT > Distribution: inet > Organization: Msen, Inc. -- Ann Arbor, Michigan > Lines: 50 > NNTP-Posting-Host: garnet.msen.com > X-Newsreader: TIN [version 1.1 PL8] > > Clock watchers take note... > > [ Article crossposted from msen.reuters.international ] > [ Posted on 1 Feb 1993 13:50:34 -0500 ] > > AM-BRAZIL-TIME > RIO DE JANEIRO ASKS 'WHAT TIME IS IT ?' > > RIO DE JANEIRO, Brazil, Reuter - Residents of Rio de Janeiro > woke up Monday wondering what time it is. > The confusing clock situation arose when Rio Mayor Cesar > Maia defied a Brazilian government regulation to end summer's > daylight savings time Sunday and turn the clocks back an hour. > But Maia, saying Rio's tourism industry needs the extra hour > of daylight that daylight savings time provides, said the city > government and everyone and everything associated with it would > stick with the summertime time schedule until Feb. 28. > ``I am not going to turn my clock back, nor will the clocks > controlled by the city be turned back,'' Maia was quoted as > saying in the Jornal do Brasil newspaper Sunday. > Rio's banks, most businesses, airports, bus stations and the > stock market are abiding by the federal government's time. > Maia said Rio de Janeiro's tourism industry would be hurt by > moving the clocks back in the middle of the Southern > Hemisphere's summer. > ``The mayor said the jobs of 30,000 people depend on this > extra hour of sunlight, when residents and tourists stay on the > streets and beaches spending money and having fun,'' the > spokesman said. > Maia's decree, which does not apply to the city's suburbs, > has left most residents wondering whether they should begin > wearing two watches. > A spokeswoman for the business owners association said Rio > stores and shopping centers were using standard time on Monday, > but it was still not clear what they would do on Tuesday. > ``The official schedule in Rio is the national standard > time. The decree does not impose the summer schedule, but rather > suggests that businesses, services and industry operate on > summer's time,'' said the mayor's spokesman, adding that Rio's > public clocks will be reset to national standard time. > Maia was to meet President Itamar Franco later Monday to > discuss the time situation, among other things. > At least for the meeting, the mayor will have to think > standard time. The meeting is scheduled for 3:30 p.m. federal > government time, the spokesman said. > REUTER > > Edward Vielmetti, vice president for research, Msen Inc. emv(a)Msen.com > Msen Inc., 628 Brooks, Ann Arbor MI 48103 +1 313 998 4562 (fax: 998 4563)

1 0

tzcode93.tar.Z and tzdata93.tar.Z
by ado Jan. 8, 1993

Jan. 8, 1993

A new version of the time zone stuff is available for anonymous ftp from elsie.nci.nih.gov (128.231.16.1), in the ~ftp/pub directory: -r--r--r-- 1 ado 91953 Jan 8 07:01 tzcode93.tar.Z -r--r--r-- 1 ado 44313 Jan 8 07:01 tzdata93.tar.Z At kre's suggestion, the package has been split in two--a code piece (which also includes documentation) that's only of use to folks who want to recompile things and a data piece useful to anyone who can run "zic". The new version has a few changes to the data files, a few portability changes, and an off-by-one fix (with thanks to Tom-Karzes(a)deshaw.com for providing a description and a solution). --ado

1 0

elsie.nci.nih.gov:~ftp/pub/tz92c.tar.Z
by ado Nov. 21, 1992

Nov. 21, 1992

The fallout from the latest round of DST transitions is available as elsie.nci.nih.gov:~ftp/pub/tz92c.tar.Z There are changes for Portugal, Saskatchewan, and "Pacific-New"; there's also a change to "zic.c" that makes it portable to more systems. Any ideas for how to handle things are welcome; they are best mailed to tz(a)elsie.nci.nih.gov so that they can get wide consideration. --ado

2 1

Re:East-Saskatchewan -> Saskatchewan [forwarded with permission]
by ado Nov. 6, 1992

Nov. 6, 1992

> Date: 06 Nov 1992 16:13:04 -0600 (CST) > From: jones(a)skdad.usask.ca (W. Jones) > Subject: Re: East-Saskatchewan -> Saskatchewan > To: ado(a)elsie.nci.nih.gov > Cc: eggert(a)twinsun.com, hardie(a)herald.usask.ca, henry(a)zoo.utoronto.ca, > peachey(a)pixar.com, tastad(a)sklib.usask.ca > ... > > Earlier I wrote: > >The most likely answer is that no-DST was adopted province-wide on some date > >(say in the late 1960s), and before that was subject to community variations. > >One thing I might ask is what precision you consider important for describing > >earlier practice. (Whatever the date, there were certainly no Unix systems > >running in affected areas.) > > The approximate answer below is based on information I got from our law > library, the provincial archives, and the provincial Community Services > department. A precise history would require digging through newspaper > archives, and since you didn't say what you wanted, I didn't bother. > > Saskatchewan is split by a time zone meridian (105W) and over the years > the boundary became pretty ragged as communities near it reevaluated > their affiliations in one direction or the other. In 1965 a provincial > referendum favoured legislating common time practices. > > On 15 April 1966 the Time Act (c. T-14, Revised Statutes of Saskatchewan > 1978) was proclaimed, and established that the eastern part of > Saskatchewan would use CST year round, that districts in northwest > Saskatchewan would by default follow CST but could opt to follow Mountain > Time rules (thus 1 hour difference in the winter and zero in the summer), > and that districts in southwest Saskatchewan would by default follow > MT but could opt to follow CST. > > It took a few years for the dust to settle (I know one story of a town > on one time zone having its school in another, such that a mom had to > serve her family lunch in two shifts), but presently it seems that only > a few towns on the border with Alberta (e.g. Lloydminster) follow MT > rules any more; all other districts appear to have used CST year round > since sometime in the 1960s. > > Here's how I would summarize things. Establish a "Saskatchewan" CST time > zone, and note that it officially exists as of 15 April 1966. Any current > exceptions can put themselves in the "Mountain" zone, since those are the > rules they follow. Any past exceptions can be forgotten, since that's > what those who live here have done.

1 0

East-Saskatchewan -> Saskatchewan [forwarded with permission]
by ado Oct. 28, 1992

Oct. 28, 1992

> From: henry(a)zoo.toronto.edu > Date: Wed, 28 Oct 92 11:58:53 EST > Subject: Re: East-Saskatchewan -> Saskatchewan > To: ado(a)elsie.nci.nih.gov, eggert(a)twinsun.com > Cc: jones(a)skorpio.usask.ca (W. Jones), peachey(a)pixar.com > > >... Anyway, I agree with Darwyn that the situation since around the > >Unix epoch is CST year round for the whole province, not just some flakes > >in the eastern corner. > > Actually, I think the province *is* split, but it's not an eastern corner > vs. everybody else. I grew up in Saskatoon, which is roughly central (and > one of the two major cities), and as a kid (1960s) I never knew DST *existed*. > (DST still strikes me as strange and stupid, actually.) Saskatoon, and at > least the immediate vicinity, has been on CST year round for a long time. > > On the other hand, other areas of the province haven't been... I first > became aware of DST when visiting relatives in Fort Qu'Appelle, a small > town south and east of Saskatoon. That was mid-late 1960s. I haven't been > back there for a long time and don't know the current situation. > > Henry Spencer at U of Toronto Zoology > henry(a)zoo.toronto.edu utzoo!henry

1 0

East-Saskatchewan -> Saskatchewan [forwarded with permission]
by ado Oct. 28, 1992

Oct. 28, 1992

> Date: Tue, 27 Oct 92 15:40:24 PST > From: eggert(a)twinsun.com (Paul Eggert) > Message-Id: <9210272340.AA13750(a)farside.twinsun.com> > To: ado(a)elsie.nci.nih.gov > ... > Subject: East-Saskatchewan -> Saskatchewan > ... > W. Jones works in Saskatoon, which (according to my dictionary) is in Central > Saskatchewan. Assuming he's correct about the clocks in his immediate > neighborhood, at least the `East-' in `East-Saskatchewan' must be wrong. > Of your sources, Bur and Peachey (another Saskatchewan resident) agree with > Jones, whereas Devine disagrees. Given the current evidence, I'd tend to go > with Bur, Jones, and Peachey -- after all, two of them live there.

1 0

Historical material on Saskatchewan
by ado Oct. 28, 1992

Oct. 28, 1992

I've attached some historical material on the original of East-Sask. --ado > From seismo!mit-eddie!spock.ee.mcgill!mannix.decnet!burj Fri Mar 6 08:58:05 1987 > Received: by elsie.UUCP (5.51/4.7) > id AA13319; Fri, 6 Mar 87 08:57:48 EST > Received: by seismo.CSS.GOV (5.54/1.14) > id AA12469; Fri, 6 Mar 87 05:13:00 EST > Received: by harvard.harvard.edu; Fri, 6 Mar 87 05:13:14 EST > Received: by EDDIE.MIT.EDU (5.31/4.7) id AA25906; Fri, 6 Mar 87 05:12:12 EST > Received: from spock by musocs.cs.mcgill id aa00376; 6 Mar 87 4:40 EST > Received: from Mannix.UdeM (mannix.ARPA) by spock.EE.MCGILL (4.12) > id AA00684; Fri, 6 Mar 87 04:50:05 est > Date: Thu, 5 Mar 87 03:37:17 est > From: Justin Bur <seismo!harvard!spock.ee.mcgill!mannix.decnet!burj> > Message-Id: <8703050837.AA00977(a)Mannix.UdeM> > Poslfit: poslfit > To: musocs!tz%elsie.uucp > Subject: DST in Saskatchewan, Canada > > The province of Saskatchewan, normally in the Central time zone, > has not used daylight savings time for the past several years. > I think there was some talk of using it for the first time this > year, but I don't remember. I also don't know if DST has never > been used in Sask. or if it used to be used some time ago: my > source is the national radio schedules of the Canadian Broadcasting > Corporation, and my subscription started in 198?. I will send more > precise information if I can find it, but it would probably be best > to find a local source of information. I *think* sask.uucp is the > University of Saskatchewan; I don't have a uucp map handy. > > Justin Bur -- Universite de Montreal > <burj(a)iros1.uucp> seismo!think!mosart!mcgill-vision!iros1!burj > > From seismo!ihnp4!sask!skorpio.UUCP!peachey Mon Mar 16 21:59:53 1987 > Received: by elsie.UUCP (5.51/4.7) > id AA00162; Mon, 16 Mar 87 21:59:38 EST > Received: from cbosgd.UUCP by seismo.CSS.GOV (5.54/1.14) with UUCP > id AA13632; Mon, 16 Mar 87 17:31:56 EST > Received: by cbosgd.MIS.OH.ATT.COM (smail2.2) > id AA07856; 16 Mar 87 17:31:04 EST (Mon) > Received: by ihnp4.ATT.COM id AA03508; 16 Mar 87 15:10:26 CST (Mon) > Received: by sask.USask.UUCP (4.12/USask-2.01/9-Feb-87) > id AA24861; Mon, 16 Mar 87 15:03:37 cst > Received: by skorpio.USask.UUCP (4.12/USask-2.0/17-Dec-86) > id AA02480; Mon, 16 Mar 87 14:54:46 cst > Date: Mon, 16 Mar 87 14:54:46 cst > From: seismo!ihnp4!skorpio!peachey (Darwyn Peachey) > Message-Id: <8703162054.AA02480(a)skorpio.USask.UUCP> > To: elsie!tz > Subject: northamerica timezones & Saskatchewan > Cc: peachey > > > If I am reading your "northamerica" (version 3.1) timezone file correctly, > it appears to be inaccurate concerning the province of Saskatchewan in > Canada. You seem to assume that all of Canada observes the DST rules. > In fact, Saskatchewan is always on standard time and has been for several > years (up to 20, I'd guess). To be more precise, we are always on daylight > time, since we are geographically in the Mountain zone, but we use Central > Standard Time year round! Thus, there is always a four hour time difference > between us and Hawaii (whereas the temperature difference varies from > -130F to +20F). > > Darwyn Peachey peachey(a)sask.UUCP peacheyd(a)sask.BITNET (306) 966-4909 > > From seismo!nbires!vianet!devine Tue Mar 17 14:33:32 1987 > Received: by elsie.UUCP (5.51/4.7) > id AA03816; Tue, 17 Mar 87 14:33:18 EST > From: seismo!nbires!vianet!devine > Received: from nbires.UUCP by seismo.CSS.GOV (5.54/1.14) with UUCP > id AA14658; Tue, 17 Mar 87 12:36:49 EST > Date: Tue, 17 Mar 87 12:36:49 EST > Message-Id: <8703171736.AA14658(a)seismo.CSS.GOV> > To: elsie!tz > Subject: Re: northamerica timezones & Saskatchewan > Cc: devine > > Darwyn Peachey peachey(a)sask.UUCP writes: > > If I am reading your "northamerica" (version 3.1) timezone file correctly, > > it appears to be inaccurate concerning the province of Saskatchewan in > > Canada. You seem to assume that all of Canada observes the DST rules. > > In fact, Saskatchewan is always on standard time and has been for several > > years (up to 20, I'd guess). To be more precise, we are always on daylight > > time, since we are geographically in the Mountain zone, but we use Central > > Standard Time year round! > > The information I have found on Saskatchewan Daylight Time is this: > > 1962-1971 Variable (each locality may have done something different) > but it seems to be last Sunday in April to last Sunday > in October (September in 1960-1) > > 1972-present? Observed in entire province except in the far-eastern > part (that part is on Central Standard time all year) > The western part is on the last Sunday in April to > last Sunday in October schedule > > I don't know where the machine 'skorpio' is but I infer that it is in > the Eastern part of Saskatchewan. Does anyone have access to an official > publication of Canada that describes DST? Does such a publication exist? > > Bob Devine

1 0

East-Saskatchewan -> Saskatchewan [forwarded with permission]
by ado Oct. 28, 1992

Oct. 28, 1992

> Date: Tue, 27 Oct 92 13:38:07 PST > From: eggert(a)twinsun.com (Paul Eggert) > Message-Id: <9210272138.AA13450(a)farside.twinsun.com> > To: ado(a)ncifcrf.gov > Subject: East-Saskatchewan -> Saskatchewan [slightly revised patch] > > Here's a slightly revised patch for the East-Saskatchewan problem. The only > change to the previous patch is the last one -- the change to Mexico/General. > This version thus saves a bit of disk space, since Canada/Saskatchewan and > Mexico/General are identical. > > *** northamerica Thu Apr 23 10:34:33 1992 > --- northamerica.fix Tue Oct 27 13:32:04 1992 > *************** > *** 215,220 **** > --- 215,224 ---- > # be same as Pacific. Stick with rules posted in 1988 until more authoritative > # information is available. > > + # From W. Jones (October 27, 1992): > + # Since (I believe) around 1964, all of Saskatchewan is on CST year round, > + # by law [the U.S. Naval Observatory notwithstanding]. > + > # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S > Rule Canada 1969 max - Oct lastSun 2:00 0 S > Rule Canada 1969 1986 - Apr lastSun 2:00 1:00 D > *************** > *** 226,232 **** > Zone Canada/Atlantic -4:00 Canada A%sT > Zone Canada/Eastern -5:00 Canada E%sT > Zone Canada/Central -6:00 Canada C%sT > ! Zone Canada/East-Saskatchewan -6:00 - CST # No DST as of 1987 > Zone Canada/Mountain -7:00 Canada M%sT > Zone Canada/Pacific -8:00 Canada P%sT > Zone Canada/Yukon -9:00 Canada Y%sT > --- 230,236 ---- > Zone Canada/Atlantic -4:00 Canada A%sT > Zone Canada/Eastern -5:00 Canada E%sT > Zone Canada/Central -6:00 Canada C%sT > ! Zone Canada/Saskatchewan -6:00 - CST > Zone Canada/Mountain -7:00 Canada M%sT > Zone Canada/Pacific -8:00 Canada P%sT > Zone Canada/Yukon -9:00 Canada Y%sT > *************** > *** 290,296 **** > # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] > Zone Mexico/BajaNorte -8:00 Mexico P%sT > Zone Mexico/BajaSur -7:00 - MST > ! Zone Mexico/General -6:00 - CST > > ############################################################################### > > --- 294,300 ---- > # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] > Zone Mexico/BajaNorte -8:00 Mexico P%sT > Zone Mexico/BajaSur -7:00 - MST > ! Link Canada/Saskatchewan Mexico/General > > ###############################################################################

1 0

please remove US/Pacific-New [forwarded with permission]
by ado Oct. 28, 1992

Oct. 28, 1992

[My inclination would be to comment out the last two lines of the "pacificnew" file rather than making the changes indicated below, perhaps also adding a comment as to why they've been commented out. What do other folks feel? --ado] > Date: Tue, 27 Oct 92 13:09:45 PST > From: eggert(a)twinsun.com (Paul Eggert) > Message-Id: <9210272109.AA11863(a)farside.twinsun.com> > To: ado(a)ncifcrf.gov > Subject: please remove US/Pacific-New > > The following patch removes US/Pacific-New, which causes more problems than it > cures (as I described in yesterday's message). Also, remove the file > `pacificnew'. > > *** Makefile Thu Jul 9 12:51:31 1992 > --- Makefile.fix Tue Oct 27 13:08:11 1992 > *************** > *** 189,195 **** > MANS= newctime.3 newtzset.3 tzfile.5 zic.8 zdump.8 > DOCS= Patchlevel.h README Theory $(MANS) date.1 Makefile > YDATA= africa antarctica asia australasia \ > ! europe northamerica southamerica pacificnew etcetera factory > NDATA= systemv > SDATA= solar87 solar88 solar89 > TDATA= $(YDATA) $(NDATA) $(SDATA) > --- 189,195 ---- > MANS= newctime.3 newtzset.3 tzfile.5 zic.8 zdump.8 > DOCS= Patchlevel.h README Theory $(MANS) date.1 Makefile > YDATA= africa antarctica asia australasia \ > ! europe northamerica southamerica etcetera factory > NDATA= systemv > SDATA= solar87 solar88 solar89 > TDATA= $(YDATA) $(NDATA) $(SDATA) >

1 0