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Canonica and non-canonical timezone question
by Andriy Hromyak Aug. 30, 2022

Aug. 30, 2022

Hello and good day I have posted a question about a problem I am dealing with here: https://github.com/moment/moment-timezone/issues/828#issuecomment-1228548097 could you please assist on providing info on how we can distinguish canonical and non-canonical timezones. Some services do not allow non-canonical timezones yet lib we use provide some time non-canonical ones. so we need way not to receive non-canonical timezones or have marker that we can know that and maybe you can provide the best racice way to map it to canonical. best regards -- Hromyak Andriy | Lead software developer andriy.hromyak(a)visiquate.com

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[PROPOSED 1/2] Additional sourcing for Crimea 2014 switch
by Paul Eggert Aug. 27, 2022

Aug. 27, 2022

From: Tim Parenti <tim(a)timtimeonline.com> Reference from previous discussion: https://mm.icann.org/pipermail/tz/2019-July/028260.html --- europe | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/europe b/europe index c3a3cc4..956f670 100644 --- a/europe +++ b/europe @@ -2615,10 +2615,14 @@ Zone Europe/Simferopol 2:16:24 - LMT 1880 # From Alexander Krivenyshev (2014-03-17): # time change at 2:00 (2am) on March 30, 2014 # https://vz.ru/news/2014/3/17/677464.html -# From Paul Eggert (2014-03-30): -# Simferopol and Sevastopol reportedly changed their central town clocks -# late the previous day, but this appears to have been ceremonial -# and the discrepancies are small enough to not worry about. +# From Tim Parenti (2022-07-01), per Paul Eggert (2014-03-30): +# The clocks at the railway station in Simferopol were put forward from 22:00 +# to 24:00 the previous day in a "symbolic ceremony"; however, per +# contemporaneous news reports, "ordinary Crimeans [made] the daylight savings +# time switch at 2am" on Sunday. +# https://www.business-standard.com/article/pti-stories/crimea-to-set-clocks-… +# https://www.reuters.com/article/us-ukraine-crisis-crimea-time/crimea-switch… +# https://www.bbc.com/news/av/world-europe-26806583 2:00 EU EE%sT 2014 Mar 30 2:00 4:00 - MSK 2014 Oct 26 2:00s 3:00 - MSK -- 2.37.2

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Re: [tz] No time zone on Solaris servers
by Paul Eggert Aug. 26, 2022

Aug. 26, 2022

On 8/26/22 10:06, W CUI wrote: > We are running 64-bit Solaris as showing from the "isainfo -v" output. Fine, but Solaris 10 /usr/bin/date is a 32-bit executable and is dynamically linked to a 32-bit C library /lib/libc.so.1 that is reading your TZif files. Presumably your "isainfo -v" outputs something like this: 64-bit sparcv9 applications vis2 vis 32-bit sparc applications vis2 vis v8plus div32 mul32 and the last two lines are what matter here. I expect that 64-bit Solaris 10 apps don't have this problem. To find out whether I'm right, you can run '/usr/bin/sparcv9/ls -l' on a new file and look at the resulting timestamp. Regardless, if this issue is a real problem for you then it's time to file a bug report with Oracle (you can tell them I sent you :-). And in the meantime you can get by with 'zic -b fat'.

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No time zone on Solaris servers
by W CUI Aug. 25, 2022

Aug. 25, 2022

Hi list, We downloaded tzdb2022c and compiled it on a Solaris 10 server with TOPDIR=/newtz and other default config parameters. After compiling is finished, the zoneinfo directory is copied to an other Solaris server, then the date command does not show any time zone on the host. It seems the server is at UTC time zone. Can anybody point me on how to fix it? Thank you very much! Wei Sent from Yahoo Mail for iPhone

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Western Australia's continuing argument over DST
by Gilmore Davidson Aug. 24, 2022

Aug. 24, 2022

"Daylight saving push in WA likely dead on arrival as government, opposition dismiss private member's bill" https://www.abc.net.au/news/2022-08-24/renewed-push-for-daylight-saving-in-… <https://www.abc.net.au/news/2022-08-24/renewed-push-for-daylight-saving-in-…> > Daylight Saving Party MLC Wilson Tucker has called on Premier Mark McGowan to legislate the return of the practice to Western Australia, instead of holding another referendum. > > Labor Minister Sue Ellery, who as leader of the government in the Upper House effectively controls the likelihood of Mr Tucker's bill being considered, was dismissive. Premier Mark McGowan reinforced the dismissal late yesterday, confirming the government would look to "respect" the results of the previous four referendums. > > […] > > Mr Tucker, who sits on the crossbench of Western Australia's Upper House, won his seat after he was elected with just 98 votes, or 0.2 per cent of the vote, and represents WA's Mining and Pastoral region where voters have delivered strong no votes in daylight saving referendums in 1975, 1984, 1992, and 2009. It should also be pointed out that Wilson Tucker wasn’t even living in Australia when he was elected (via weird voting preference deals that have resulted in calls to update the WA voting legislation).

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file "zoneinfo2tdf.pl" is missing from latest release 2022c!
by chris＠gensler-it-support.de Aug. 19, 2022

Aug. 19, 2022

Maybe that's intended, but it disappeared without notice. Chris

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Add option to act like global-tz
by Paul Eggert Aug. 18, 2022

Aug. 18, 2022

I wangled a bit of free time and wrote the attached proposed patch, which adds an option that causes 'make install' to generate time zone data (TZif files) that are byte-for-byte identical to what Stephen Colebourne's global-tz currently generates. This is done via a few lines of awk script. The idea is to give an option to distros that prefer a separate Zone per ISO 3166 country, just as we already have build-time options for rearguard/vanguard form, TZif truncation, leap seconds, etc. I haven't installed this in the development database. Comments welcome as usual.

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time_t truncation occurrence in tzcode
by Jan Engelhardt Aug. 18, 2022

Aug. 18, 2022

Due to an update of the Coverity Scan analyzer itself, it has identified a new issue in timezone code. In version 2022c (the excerpt is copypasted from an own project, so line numbers don't mean much), it has flagged: <<< 1757 while (year_lengths[isleap(y)] <= idays) { 1758 int tdelta = idays / DAYSPERLYEAR; 1759 int_fast32_t ydelta = tdelta + !tdelta; 1760 time_t newy = y + ydelta; 1761 register int leapdays; 1762 leapdays = leaps_thru_end_of(newy - 1) - 1763 leaps_thru_end_of(y - 1); 1764 idays -= ydelta * DAYSPERNYEAR; 1765 idays -= leapdays; 1766 y = newy; 1767 } 1768 1769 if (!TYPE_SIGNED(time_t) && y < TM_YEAR_BASE) { CID 1491244 (#1 of 1): Use of 32-bit time_t (Y2K38_SAFETY) 1. store_truncates_time_t: A time_t value is stored in an integer with too few bits to accommodate it. The expression y is cast to int. 1770 int signed_y = y; ^^^^^^^^^^^^ 1771 tmp->tm_year = signed_y - TM_YEAR_BASE; 1772 } else if ((!TYPE_SIGNED(time_t) || INT_MIN + TM_YEAR_BASE <= y) 1773 && y - TM_YEAR_BASE <= INT_MAX) 1774 tmp->tm_year = y - TM_YEAR_BASE; 1775 else { 1776 errno = EOVERFLOW; 1777 return NULL; 1778 } 1779 tmp->tm_yday = idays; >>> On e.g. x86_64-linux-gnu, time_t is 64 bits (signed) wide, and while the specific code path is not executed on that particular platform, the warning about a truncation to a 32-bit signed int seems justified.

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Official Chilean Goverment Decret for timezone changes 2022-2026
by Eduardo Romero Urra Aug. 18, 2022

Aug. 18, 2022

Dear Paul, I've send a copy of presidential decret for Summer time changes for the Republic of Chile, officially published at August 13th 2022: https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01… I've review your update 2022b TZdata and it's ok for this year where the summer time starts the second saturday of September ( Sep 10th at midnight), but the next years ( 2023 to 2026 ) is need to precise that the summer time event affects only for this year according to avoid problem confusions to a Votation Day schedule to the next sunday Sept 4th (the original summer time change was schedule at Saturday Sep 3th midnight). Also consider this also affects to Easter Island Time Zone (Pacific/Easter) and not affects to Chile/Punta_Arenas Time Zone. At resume (page #2 of document): 2022: - Chile/Continental ( America/Santiago ): Summer time starts at Saturday 10th Sep. at 24:00 Hrs, adding 1hour ( GMT -03) - Chile/Easter (Pacific/Easter) : Summer time starts at Saturday 10th Sep. at 22:00 Hrs, adding 1hour ( GMT -05) - Chile/Punta_Arenas (America/Punta_Arenas): No changes, keeps on GMT -03 2023-2025 - Chile/Continental ( America/Santiago ): Summer time ends at first saturday of Abril 24:00 Hrs, backward 1hour ( GMT -04) , and Summer time starts the first saturday of September at 24:00 , adding 1hour ( GMT -03) - Chile/Easter (Pacific/Easter) : Summer time ends at first saturday of Abril at 22:00 Hrs, backward 1hour ( GMT -06), and Summer time starts the first saturday of September at 24:00 , adding 1hour ( GMT -05) - Chile/Punta_Arenas (America/Punta_Arenas): No changes , keeps on GMT -03 2026: - Chile/Continental ( America/Santiago ): Summer time ends at first saturday of Abril 24:00 Hrs, backward 1hour ( GMT -04) - Chile/Easter (Pacific/Easter) : Summer time ends at first saturday of Abril at 22:00 Hrs, backward 1hour ( GMT -06) (the decret has no mentions for future time changes plans) - Chile/Punta_Arenas (America/Punta_Arenas): No changes , keeps on GMT -03 I've check the rules on southamerica file , but i'm not sure if apply correctly for Easter Island changes Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 2021 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2022 only - Sep Sun>=9 4:00u 1:00 - Rule Chile 2023 max - Sep Sun>=2 4:00u 1:00 - [...] Zone Pacific/Easter -7:17:28 - LMT 1890 -7:17:28 - EMT 1932 Sep # Easter Mean Time -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 I'm very appreciated your assistance for this changes. Thanks in Advance. ━━━━━━━━ Eduardo Romero Urra Asesor de Sistemas División de Redes y Seguridad Informática +56224863218 Ministerio del Interior y Seguridad Pública Gobierno de Chile CONFIDENCIALIDAD Y USO EXCLUSIVO: La información contenida en este mensaje y/o en los archivos adjuntos son de carácter confidencial y está destinada al uso exclusivo del emisor y/o de la persona o entidad a quien va dirigida, y por lo mismo pueden ser consultados y revisados por la entidad emisora o propietaria de los sistemas desde donde fueron enviados.- Si usted no es el destinatario, cualquier almacenamiento, divulgación, distribución o copia de esta información está estrictamente prohibida y sancionada por la ley. Si recibió este mensaje por error, por favor infórmenos inmediatamente respondiendo este mismo mensaje y borre éste y todos los archivos adjuntos. Considerando que no existe certidumbre de que el presente mensaje no será modificado como resultado de su transmisión por correo electrónico, el emisor original no será responsable si el contenido del mismo ha sido modificado. Ministerio del Interior y Seguridad Publica<https://www.interior.gob.cl>

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Re: [tz] tzdata 2022b and 2022c location
by Paul Eggert Aug. 16, 2022

Aug. 16, 2022

On 8/16/22 01:07, Alex Goldberg3 wrote: > We usually get tzdata files from https://github.com/unicode-org/icu-data/tree/main/tzdata/icunew , where metaZones.res, timezoneTypes.res, etc are located. However, the latest release there is 2022a. Are 2022b and 2022c not officially released or may be changed location? I suspect that you're talking about ICU's files concerning time zones as opposed to the tzdata files themselves, as the repository you mention stopped mirroring tzdata files after tzdata 2011k. ICU is downstream from tzdata and an ICU forum would be a good place to ask about ICU's status. A request for ICU to update to match tzdata 2022b (and 2022c) is here: https://unicode-org.atlassian.net/browse/ICU-22118 and I expect you can monitor and/or comment there. Currently nobody is assigned to the task.

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