September 2024 - tz - lists.iana.org

New timezone Antarctica/Concordia (UTC+8)
by Erik Geletti 01 Oct '24

01 Oct '24

Goodmorning. I'm writing here to propose a new time zone for an all-year open Antarctic base. The base is a French–Italian research facility that was built 3,233 m (10,607 ft) above sea level at a location called Dome C on the Antarctic Plateau, Antarctica. https://en.wikipedia.org/wiki/Concordia_Station The timezone is UTC+8 without DST. Best regards, Erik Geletti -- Erik Geletti Servizi Tecnici ed Informatici Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS Borgo Grotta Gigante n. 42/c 34010 Sgonico (Trieste) - Italia Tel. 0402140286 www.ogs.it

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Paraguay may adopt permanent DST soon
by Heitor David Pinto 25 Sep '24

25 Sep '24

Today the Congress of Paraguay passed a bill to observe UTC-3 permanently, equivalent to permanent DST. The bill still needs to be approved by the president. https://www.abc.com.py/politica/2024/09/24/congreso-sanciona-horario-de-ver… The text of the bill says that it would enter into force on the first Sunday in October 2024, the same date currently scheduled to start DST. But in practice, it would only make a difference from the fourth Sunday of March 2025, the date currently scheduled to end DST. https://silpy.congreso.gov.py/web/expediente/132531

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Brazil may reinstate daylight saving time soonish
by Paul Eggert 24 Sep '24

24 Sep '24

A Reuters report[1] says that energy authorities in Brazil have approved a plan to bring back daylight saving time, to save electrical energy during a major drought that has hurt hydroelectric power generation[2]. As far as I know authorities have not decided or published details of the plan, such as which states would be involved and dates and times of transitions. However, one English-language report says that DST would not start until after the election period ends on October 27[3]. This is not a done deal, as any change would need approval by President Luiz Inácio Lula da Silva. That being said, Brazil's DST was abolished by Lula's predecessor and political opponent Jair Bolsonaro, and Lula did an informal Twitter poll shortly after his election in which 66% of respondents voted for DST[4], so presumably Lula would favor restoring DST. [1]: Rodrigo Viga Gaier and Leticia Fucuchima. Brazil energy authorities approve returning to daylight saving time as drought bites. Reuters. 2024-09-20. <https://www.reuters.com/world/americas/brazil-likely-reinstate-daylight-sav…> [2]: Daylight Saving Time Won’t Fix Brazil’s Energy Crisis. Latin American Post. 2024-09-23. <https://latinamericanpost.com/analysis-en/daylight-saving-time-wont-fix-bra…> [3]: Leonardo Vieceli. Brazil's National Electric Operator Recommends Daylight Saving Time. Folha de S.Paulo. 2024-09-20. <https://www1.folha.uol.com.br/internacional/en/business/2024/09/brazils-nat…> [4]: Amanda Audi. Will Brazil bring back daylight saving time? The Brazilian report. 2024-01-02. <https://brazilian.report/society/2024/01/02/lula-daylight-saving-time/>

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Potential Inconsistency in tz Database (2024b) for Mexico 1931
by Bogdan Hoancea 16 Sep '24

16 Sep '24

Dear IANA Team, I hope this message finds you well. My name is Bogdan Hoancea, and I am a software engineer at ABB. We maintain the software package tzdata<https://www.npmjs.com/package/tzdata>, which utilizes the tz database for generating time zone information. I am reaching out regarding a potential inconsistency I noticed in the latest tz database release (tzdata2024b/northamerica). Specifically, for Mexico in 1931, "May 1 23:00" appears to have been changed to "April 30 0:00," whereas it seems the correct adjustment should have been "Apr 30 0:00," in line with the rest of the table. [cid:image001.png@01DB0854.42FCA410] While it is always a possibility to handle this particular case in our software, I wanted to bring it to your attention in case it impacts other users as well, and also, we would prefer it if the root cause of the issue was handled. Thank you for your continued work in maintaining such a critical resource, and please feel free to reach out if any further information is required. Best regards, Bogdan Hoancea [https://signatures.spiritit.com/ABB_Logo_HR.png]<http://www.abb.com/> - Bogdan Hoancea Software engineer - SpiritIT Measurement & Analytics ABB b.v. Achtseweg Zuid 151A / Strijp-TQ Entrance 5 5651GW Eindhoven, The Netherlands Phone: +31 88 440 47 12 abb.com

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Makefile checknow
by Stephen Colebourne 15 Sep '24

15 Sep '24

Hi, The Makefile contains a section called `check_now`. It references the files `zone1970.tab` and `zonenow.tab`. Other sections of the Makefile take account of the variable $ZONETABLES before using/checking zone files. Would it be possible to alter Makefile so it only runs check_now if at least one of zone1970/zonenow are in $ZONETABLES ? eg. something like this (now 100% sure this is the right logic...): check_now: checknow.awk date tzdata.zi zdump zic zone1970.tab zonenow.tab for tab in $(ZONETABLES); do \ rm -fr $@.dir mkdir $@.dir ./zic -d $@.dir tzdata.zi now=$(CHECK_NOW_TIMESTAMP) && \ future=`expr $(CHECK_NOW_FUTURE_SECS) + $$now` && \ ./zdump -i -t $$now,$$future \ $$(find $$PWD/$@.dir/????*/ -type f) \ >$@.dir/zdump.tab $(AWK) \ -v zdump_table=$@.dir/zdump.tab \ -f checknow.awk zonenow.tab rm -fr $@.dir done touch $@ thanks Stephen

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Issue with "April" in northamerica file also breaks Elixir tzdata lib updater (":tzdata_release_updater terminating..."), a dependency of timex
by greg＠rumandcode.io 12 Sep '24

12 Sep '24

Just wanted to add to the list of libraries impacted by this issue. tzdata is a dependency of the timex library, one of the most popular in the elixir ecosystem. A 2024c release with the fix would be much appreciated. Best regards, Greg McDonald

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Tzdb: Apr-April Issue: Request to provide ETA for next release with the fix - 2024c
by sattisrinivas89＠gmail.com 10 Sep '24

10 Sep '24

Greetings Team, I am writing to bring to your attention a critical issue we've encountered with the recent release of https://github.com/eggert/tz -version 2024b. We are using https://github.com/HowardHinnant/date library for our scheduler, the changes with 2024b have caused our schedulers to fail across thousands of agents. Given the scale of our deployment, manually fixing each affected agent is not a feasible solution for us. I see the issue has been fixed in the repo, I really appreciate making a quick fix. Could you please provide an estimated timeline for when we can expect a new release with the fix. If possible, we would greatly appreciate it if you could expedite the release with the fix. Thank you very much for your prompt attention to this matter. We look forward to your response. Thanks Srinivas.

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2024b
by Christopher Burke 09 Sep '24

09 Sep '24

Greetings, I am not sure if this is technically an error from your perspective or not; but the latest 2024b DB does not load using the Azul ZUUpdater Tool. It fails with the following message: Failed: java.lang.Exception: Failed while parsing file '/tmp/ziupdater1990610874409301294343524276772419/srcdir/northamerica' on line 2633 'Rule Mexico 1931 only - April 30 0:00 1:00 D' From looking at the source files this is the only occurrence of a full month string I could find; the rest are 3 letter abbreviations, e.g. Apr. I thought I would let you know in case this was a mistake. Regards Chris Burke This message may contain confidential and/or privileged information and is intended solely for the named recipient. Please notify Air New Zealand immediately if received in error and delete the message (do not distribute further). Views expressed are those of the sender and may not represent Air New Zealand. For more information on the Air New Zealand Group, visit us online at https://www.airnewzealand.com/

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Re: Typo in northamerica file
by Hal Murray 09 Sep '24

09 Sep '24

> We are preparing a patch not to auto download but customers will take > time to upgrade agents and until they do the system is down. > We would really appreciate if a new patch - 2024c can be released, so > that it would fix the problems immediately as fix has been made already. If your code is dependent on data from somebody else, your customers should download it from your site so you can check new versions before releasing them to your customers. -- These are my opinions. I hate spam.

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Typo in northamerica file
by Kelvin Wong 09 Sep '24

09 Sep '24

Hi Iana, It appears that there is a typo in the latest version of tzdata (2024b), where one of the lines in northamerica should be "Apr" instead of "April". # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Mexico 1931 only - April 30 0:00 1:00 D Would you please check and see if it can be corrected in the next version? Thanks, Kelvin [Insignia-transp] Kelvin Wong VP, Client Services, FlexTrade Systems O: +852 3579 2231 | M: +852 3579 2231 | flextrade.com<http://flextrade.com/> 21/F, New World Tower 1, 16-18 Queen's Road Central, Hong Kong [cid:image002.png@01DB02CD.CF076080]<https://www.linkedin.com/company/flextrade/> [cid:image003.png@01DB02CD.CF076080] This communication is for informational purposes only. The contents of this transmission are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error, please notify the sender by return email and delete this message from your system. FlexTrade Systems Inc., its subsidiaries and affiliates do not guarantee the completeness and accuracy of this transmission's contents. Moreover, FlexTrade Systems Inc., its subsidiaries and affiliates do not guarantee this communication to be free of viruses and accept no liability for any damage caused thereof.

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