- tz - lists.iana.org

Support for the IANA database in the Python standard library
by Paul Ganssle Feb. 26, 2020

Feb. 26, 2020

Hey folks, Just thought I'd draw your attention to my recent proposal to add IANA (e.g. /usr/share/zoneinfo) time zone support to Python's standard library: PEP 615 ( https://www.python.org/dev/peps/pep-0615/ ). I sent out the proposal today, discussion is happening on the Python discourse: https://discuss.python.org/t/3468 There is a reference implementation for the proposed module here (in Python): https://github.com/pganssle/zoneinfo Any feedback on the proposal would be very welcome -- as many of you can imagine, it can sometimes be hard to get too much feedback on time zone and datetime-related proposals because a great many people (probably rightly so) are just happy that someone /else/ is thinking about it so they don't have to. The discourse is the canonical location for the discussion, so commenting there would be best, but beggars can't be choosers, so I'll happily pass on comments made on this list or sent to me personally. Thanks! Paul

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Time Zone Database: Update of DST settings for Morocco based on actual announcement by local government
by De Feo, Gary Feb. 25, 2020

Feb. 25, 2020

Dear all, We are currently realizing a project in Morocco where we would need to consider the local DST definition which is not fixed but, according to information provided by our customer, defined each year by the local government on a rather short term basis. Is your organization reflecting these short term definitions in your database? Thank you very much for your support. With best regards, Gary De Feo Siemens AG Smart Infrastructure Digital Grid Project Management SI DG GC D PM Humboldtstr. 59 90459 Nuernberg, Germany Tel.: +49 911 433-7385 Fax: +49 911 433-7896 Mobile: +49 151 54444318 mailto:gary.de_feo@siemens.com www.siemens.com/ingenuityforlife<https://siemens.com/ingenuityforlife> [cid:image001.gif@01D5EBB5.F2B9F9E0] Siemens Aktiengesellschaft: Chairman of the Supervisory Board: Jim Hagemann Snabe; Managing Board: Joe Kaeser, Chairman, President and Chief Executive Officer; Roland Busch, Lisa Davis, Klaus Helmrich, Cedrik Neike, Michael Sen, Ralf P. Thomas; Registered offices: Berlin and Munich, Germany; Commercial registries: Berlin Charlottenburg, HRB 12300, Munich, HRB 6684; WEEE-Reg.-No. DE 23691322

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Do Yukoners care about DST more than cannabis?
by Paul Eggert Feb. 20, 2020

Feb. 20, 2020

The Yukon government recently surveyed its citizens for their opinion whether Yukon should stay on PST all year, stay on MST all year, or continue the current practice of PST in winter and PDT in summer. The survey closed Sunday, and the government says it got more than 4800 responses, which is a new record. The previous mark of nearly 3200 responses was set by Yukon's 2017 survey on legalization of marijuana. See: Croft D. Spring forward, fall back survey sets Yukon record. CBC News. 2020-02-19. https://www.cbc.ca/news/canada/north/yukon-seasonal-time-change-survey-reco…

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Change to TZ
by Max Kachur Feb. 19, 2020

Feb. 19, 2020

Hi. My name is Max. I want to suggest you new correction to timezone name. Old name is "Europe/Kiev", new one is "Europe/Kyiv". This name was officially changed recently. Here is more details. Thank you for attention!

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More on EU/UK/Brexit clock changes
by Chris Woodbury Feb. 15, 2020

Feb. 15, 2020

The "Time Lords" subcommittee has released yet another study. Find it at: https://publications.parliament.uk/pa/ld5801/ldselect/ldeucom/15/15.pdf Article on Yahoo News: https://www.yahoo.com/news/eu-clock-changes-uk-implications-164042321.html

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leap smear redux
by scs+ls＠eskimo.com Feb. 12, 2020

Feb. 12, 2020

[crossposted to three lists -- beware if replying] For your amusement: https://xkcd.com/2266/ (I think Randall Munroe is a closet time nut.)

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XKCD of the day
by Guy Harris Feb. 11, 2020

Feb. 11, 2020

https://xkcd.com/2266/

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Re: [tz] tzdb data for North and Central America
by Paul Eggert Feb. 6, 2020

Feb. 6, 2020

Thanks for your email. I installed the attached, which adds it as comment to the western Ontario zones.

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tzdb data for North and Central America
by Jeffery Nichols Jan. 24, 2020

Jan. 24, 2020

Hello. You might want to note that the America/Halifax timezone also applies to Îles-de-la-Madeleine and the Listuguj reserve in Quebec. Officially, this came into effect on January 1, 2007 (*Legal Time Act*, CQLR c T-5.1), but the legislative debates surrounding that bill say that it is "accommodating the customs and practices" of those regions, which suggests that they have always been in-line with Halifax. Also, you call America/Whitehorse "south Yukon" and America/Dawson "north Yukon", but the divide is actually between east and west, at the 138th meridian. -- *Jeffery Nichols*, JD, MPA, MA

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Leap year bugs
by Matt Johnson-Pint Jan. 24, 2020

Jan. 24, 2020

Hello Time People! Apologies in advance, as I know this is a bit off-topic being not about time zones, but I know that many of you are invested in date and time programming, and I'd appreciate some peer discussion. I've been invested in the last many months on preventative measures against leap year bugs, both in my day job at Microsoft and in the public space. Some of my recent posts: https://stackoverflow.com/questions/57530882/what-are-some-examples-of-leap… https://codeofmatt.com/on-the-life-cycle-of-a-leap-year-bug/ And from last leap year: https://codeofmatt.com/list-of-2016-leap-day-bugs/ https://azure.microsoft.com/en-us/blog/is-your-code-ready-for-the-leap-year/ Sometimes I feel like I'm overreacting, but then I remember the infamous 2012 Azure cloud leap day outage, and all the many other things across the industry that were impacted in 2016 (see my list above). My question for the community is this: Why are Y2K and Y2038 bugs such a hot topic when they are/were one-time events, but yet leap year bugs are rarely discussed even though they are recurring and can have critical impact? People seem to remember 20 years ago, but not 4 or 8 years back. Why? Are any of you working on leap year related issues? Have you checked your date math for leap year bugs? If not, why? Thanks, Matt

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