March 2001 - tz - lists.iana.org

Daylight saving time in Mexico City, Durango, etc.: the plot thickens
by Paul Eggert March 4, 2001

March 4, 2001

The following article in yesterday's Los Angeles Times has several bits of information about the new daylight saving rules in Mexico: James F. Smith Confusion Is the Watchword as Mexico Tinkers With Time http://www.latimes.com/news/nation/20010303/t000018766.html Among other things, the article says: * Sonora will not adopt DST, to keep in sync with Arizona. This is as before. * Other border states, including Baja California, Chihuahua, and Nuevo Leon, will go on DST on the first Sunday in April, to keep in sync with the US. Presumably they will also use US rules in the fall. * Last weekend, Mexico City conducted an unusual telephone referendum and callers (about 5% of registered voters) voted 3:1 against DST. The mayor, Andres Manuel Lopez Obrador, then decreed last week that the Federal District will not adopt DST. * The federal government says that federal facilities in the Federal District (is that enough "federals" for you?) will use DST despite Lopez Obrador's decree. This includes banks, hospitals, and the airport. Also, schools fall under federal rules and will use DST. * 4 (out of 16) district leaders in Mexico City have announced that they will ignore the mayor's decree. * Lopez Obrador has said he'll file a Supreme Court challenge to the federal DST rules, arguing that the president does not have the constitutional authority to impose DST by decree. The Mexico City confusion stems from a political dispute between Lopez Obrador and Mexican president Vicente Fox. Here's the last two sentences of the article, which pretty well sums up the situation: Carlos Marin, a columnist in the daily Milenio, wrote that the dispute "descends into the arena of the absurd. One merely has to imagine what it will be like to cross one of the hundreds of streets that pass through different districts of the capital and find oneself with one hour more, or less, to eat, work, go to a movie or die." Smith doesn't list the other border states that will use the US rules, but my guess is that Coahuila, Tamaulipas, and Durango (the last a non-border state) will also observe US DST rules, as those states have all agreed with Nuevo Leon since 1970. I'd certainly welcome any better info. This reminds me of a similar dispute in Rio de Janeiro some time ago, in which the mayor backed down after the city endured a day of balkanized time zones. It's one thing to run a small town like Pangnirtung like that; it's quite another thing to do it with a major metropolis like Mexico City.

1 0

Wrong infor for Malaysia
by Siew_Hong_Leong＠Dell.com March 4, 2001

March 4, 2001

Hi, Just check your website on Malaysia current time it show 4:17pm however the actual time is 3.55pm Rgds - Siew Hong Dell Asia Pacific Sdn Bhd Tel:604-633 4220 Fax:604-633 8220 http:\\www.dell.com\ap http:\\inside.ap.dell.com\it

1 0

RE: DST in Paraguay
by Jesper Nørgaard March 3, 2001

March 3, 2001

I found the link http://www.diarioabc.com.py/eco02.htm about this issue which is an up-to-date confirmation of the link http://www.diarionoticias.com.py/011000/nacional/naciona1.htm> which says that the DST will end First Sunday of March, but not at which hour (although the DST change in October being at 0 hour, your might deduce that DST will be left at the same hour). This also confirms that no separate rulings have been enforced in the mean time. This means that this Sunday the 4.th. of March at 0:00 the clock will be set back to 23:00 in Paraguay. 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 ---------- From: Gwillim Law[SMTP:gwil@mindspring.com] Sent: Martes 27 de Febrero de 2001 15:09 To: tz (E-mail) Cc: gerti(a)bitart.com Subject: Re: DST in Paraguay Gerd Knops wrote: > ... Paraguay changes to DST on the > first Sunday in March, NOT on the last Sunday in February as the > current rules still say. In support of Mr. Knops's assertion, I found this article in the digital edition of Noticias, a daily paper in Asuncion, Paraguay, at <http://www.diarionoticias.com.py/011000/nacional/naciona1.htm> (the edition of October 1, 2000). "La hora oficial se adelanta hoy sesenta minutos "Desde la 0 hora de hoy rige el nuevo horario de verano en cumplimiento del Decreto Nº 7.273 del Poder Ejecutivo con el fin de adecuar el horario a las variaciones climáticas de nuestro país. Desde la 0 hora el reloj será adelantado 60 minutos, con lo que el tiempo se adecuaría a los cambios del clima en este periodo del año. Según el argumento oficial, el objetivo del cambio de horario ?cada seis meses? es aprovechar la luz solar reinante en esta época del año y ahorrar energía eléctrica. Este sistema de horario establece que hoy domingo tendremos sólo 23 horas y, por ende, las personas tendrán una hora menos de descanso, dormirán menos tiempo. El cambio sistema horario se produce desde hace varios años, aunque anteriormente se establecía por medio de un decreto para cada caso y ahora rige de la misma manera, pero de manera permanente. Cada seis meses, por medio de una ley, el cambio será el primer domingo de octubre; en tanto, el horario será atrasado el primer domingo de cada mes de marzo. Con este procedimiento habrá una diferencia de tres horas con el centro británico conocido como Grenwich Meridiano Terrestre (GMT), la referencia universal de tiempo para los relojes y cronómetros del mundo." My non-literal translation of the essential points: Standard time moves forward sixty minutes today Starting at 0:00 today, the clock will be set forward 60 minutes, in fulfillment of Decree No. 7,273 of the Executive Power.... The time change system has been operating for several years. Formerly there was a separate decree each year; the new law has the same effect, but permanently. Every year, the time will change on the first Sunday of October; likewise, the clock will be set back on the first Sunday of March. Gwillim Law

1 0

Html-ize the tz database?
by Gwillim Law March 2, 2001

March 2, 2001

Recently, this mailing list has discussed the perceived need for standardized time zone abbreviations. There has also been some talk about putting the boundaries of time zones into a GIS (Geographic Information System) format. Several people have volunteered to help with that task. These issues are not new; they've come up repeatedly in the past. I've just now posted a few sample Web pages to display data from the tz database in a more accessible format. This applies particularly to the geographic extent of time zones, which is hidden in comments in tzdata2000h. I invite anyone who is interested to visit http://www.mindspring.com/~gwil/tz.html and browse around. Questions to keep in mind: Are the sample pages the best way of displaying the data? Would they be a useful resource for the other tasks mentioned above? Is it feasible to maintain a Web site like this in synch with the tz database? Gwillim Law

5 7

FW: Daylight Savings Time problems in Brazil
by Olson, Arthur David (NCI) March 1, 2001

March 1, 2001

Hank Ivy is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: Hank Ivy [mailto:hivy@rosemail.rose.hp.com] Sent: Wednesday, February 28, 2001 2:12 PM To: tz(a)elsie.nci.nih.gov Subject: Daylight Savings Time problems in Brazil Dear Sirs, I have been working with the 2000h version of the time zone and daylight savings time data at ftp://elsie.nci.nih.gov/pub/tzdata2000h.tar.gz <ftp://elsie.nci.nih.gov/pub/tzdata2000h.tar.gz> , and ftp://elsie.nci.nih.gov/pub/tzcode2000h.tar.gz <ftp://elsie.nci.nih.gov/pub/tzcode2000h.tar.gz> . I have found some unusual results in the rules files for time zones in Brazil. I have given a high level statement of the unusual, and then detailed output from the zdump command later. The details are in the attachment. Do you get similiar results from the zdump command? Have I made a mistake in understanding the zdump results? Is there any way that I can help clear this up? *** Local Name BRT 3 BRST in Brazil The time zone America/Recife has a seven day long Daylight Savings Time (DST) in October 2000, and no DST in 1991-1998, 2001, and beyond. The time zone America/Maceio has a fourteen day long DST in October 2000, and no DST in 1991-1994, 1997, 1998, 2001, and beyond. The time zone America/Fortaleza has a fourteen day long (DST) in October 2000, and no DST in 1991-1998, 2001, and beyond. The time zones America/Araguaina and America/Sao_Paulo have the same local names as the three time zones above. They are all in Brazil. These time zones have reasonable length DST in 2000, and 2001. These look OK. *** Local Name AMT 4 AMST in Brazil The time zone America/Boa_Vista has a seven day long (DST) in October 2000, and no DST in 1988-1998, 2001, and beyond. The time zone America/Cuiaba has the same local name. They are both in Brazil. This time zone has reasonable length DST in 2000, and 2001. This looks OK. -- Regards, Hank Ivy | Henry (Hank) B. Ivy PHONE : (916)785-1392 | | FAX : (916)785-9238 | | ecardfile : https://ecardfile.com/ <https://ecardfile.com/> id : hank_ivy | | Hewlett-Packard Company USENET: hivy(a)rosemail.rose.hp.com | | 8000 Foothills Boulevard, MS 5617 | | Roseville, California 95747-5617 |

2 1