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Permanent DST in Florida: step 2 of 4 completed
by Arthur David Olson March 12, 2018

March 12, 2018

"The Florida Senate passed the Sunshine Protection Act on Tuesday, three weeks after the state’s House of Representatives, and sent it to Gov. Rick Scott..." https://www.nytimes.com/2018/03/08/us/daylight-saving-time-florida.html?smi… (I have hopes for a new CBS hit series, "DST: Miami.") (Less frivolously, discussions about using EDT, AST, or FST--and how to set tm_isdst--can begin in earnest.) @dashdashado

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[PATCH] * tz-art.html: Add a Veep episode.
by Paul Eggert March 12, 2018

March 12, 2018

--- tz-art.html | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/tz-art.html b/tz-art.html index 480b9e1..9624d8c 100644 --- a/tz-art.html +++ b/tz-art.html @@ -81,19 +81,19 @@ doing so got a crook trying to be declared dead to emerge a bit too early from the titular enclosure. </li> <li> -The 1960s ITC television series The Prisoner included an episode -entitled "The Chimes of Big Ben" in which our protagonist tumbled to +"The Chimes of Big Ben", The Prisoner, episode 2, ITC, 1967-10-06. +Our protagonist tumbles to the fraudulent nature of a Poland-to-England escape upon hearing "Big Ben" chiming on Polish local time. </li> <li> -The series Seinfeld included an episode entitled "The Susie," first -broadcast 1997-02-13, in which Kramer decides that daylight saving time +"The Susie", Seinfeld, season 8, episode 15, NBC, 1997-02-13. +Kramer decides that daylight saving time isn't coming fast enough, so he sets his watch ahead an hour. </li> <li> -The "20 Hours in America" episode of The West Wing, -first aired 2002-09-25, contained a <a +"20 Hours in America", The West Wing, season 4, episodes 1–2, +2002-09-25, contained a <a href="https://www.youtube.com/watch?v=-J1NHzQ1sgc">scene</a> that saw White House staffers stranded in Indiana; they thought they had time to catch Air Force One but were done in by intra-Indiana local time changes. @@ -165,6 +165,11 @@ CBS, 2016-01-17. The applicability of a contract hinges on the time zone associated with a video timestamp. </li> +<li> +"Justice", Veep, season 6, episode 4, HBO, 2017-05-07. +Jonah's inability to understand DST ends up impressing a wealthy +backer who sets him up for a 2020 presidential run. +</li> </ul> <h2>Books, plays, and magazines</h2> <ul> -- 2.14.3

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Regarding timezone upgrade from 2017c to 2018c
by Debananda Pal March 12, 2018

March 12, 2018

Hi, While upgrading to 2018c timezone, I found below changes : ./etc/localtime ./etc/localtime ==> Newly added ./etc/zoneinfo/localtime -> GMT ==> This entry is removed ./etc/zoneinfo/GMT ./etc/zoneinfo/GMT ==> Changed to ==> ./etc/zoneinfo/GMT link ./etc/localtime ./etc/zoneinfo/US/Pacific-New -> ../America/Los_Angeles ==> This entry is removed ./etc/zoneinfo/Africa/Sao_Tome -> ../Atlantic/St_Helena ==> Changed to ==> ./etc/zoneinfo/Africa/Sao_Tome ./etc/zoneinfo/Africa/Sao_Tome Please let me know, if the above changes are expected according to 2018c TZ database change. Regards, D Pal

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Misspelling of Kyiv in the Time Zone Database
by Mykola Moroziuk March 5, 2018

March 5, 2018

Greetings. I noticed that name of the capital of Ukraine is misspelled. In the Time Zone Database it's written as "Kiev" which is wrong. This spelling is wrong since it's transliteration of russian variant of the city's name - "Киев". The right spelling of the city's name is "Kyiv", since in Ukrainian it's written as "Київ", and pronunciation of "Kyiv" is the closest to the "Київ". Please, consider changing the name of the city from "Kiev" to "Kyiv", Thanks. Respectfully, Mykola Moroziuk

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[PROPOSED] * tz-link.html: Link to Google Time Zone Data.
by Paul Eggert March 5, 2018

March 5, 2018

--- tz-link.html | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tz-link.html b/tz-link.html index 0fc4bc6..f3ac4ed 100644 --- a/tz-link.html +++ b/tz-link.html @@ -182,6 +182,8 @@ data yourself. System-specific instructions for installing the latest <code><abbr>tz</abbr></code> data have also been published for <a href="https://www.ibm.com/developerworks/aix/library/au-aix-olson-time-zone/index…"><abbr>AIX</abbr></a>, <a +href="https://play.google.com/store/apps/details?id=com.google.android.timezone.d…">Android</a>, +<a href="http://userguide.icu-project.org/datetime/timezone"><abbr title="International Components for Unicode">ICU</abbr></a>, <a href="https://developer.ibm.com/javasdk/support/dst/jtzu/"><abbr>IBM</abbr></a> -- 2.7.4

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[PROPOSED] * australasia: Mention Pearce 2017 for Queensland.
by Paul Eggert Feb. 27, 2018

Feb. 27, 2018

--- australasia | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/australasia b/australasia index c7c0ea7..32ad61e 100644 --- a/australasia +++ b/australasia @@ -1086,6 +1086,13 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # South Australian time even though it's located in Western Australia. # Queensland + +# From Paul Eggert (2018-02-26): +# I lack access to the following source for Queensland DST: +# Pearce C. History of daylight saving time in Queensland. +# Queensland Hist J. 2017 Aug;23(6):389-403 +# https://search.informit.com.au/documentSummary;dn=994682348436426;res=IELHSS + # From George Shepherd via Simon Woodhead via Robert Elz (1991-03-06): # # The state of QUEENSLAND.. [ Courtesy Qld. Dept Premier Econ&Trade Devel ] # # [ Dec 1990 ] -- 2.7.4

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Converting cities to tz identifiers (tangent)
by John Hawkinson Feb. 26, 2018

Feb. 26, 2018

This is a bit of a rambling tangent, so sorry. I recently had to find tz zones for ~100 American cities, and the process did not go quite as smoothly as I had expected. I figured that a review of theory.html and tz-link.html would tell me the best way to do this, and it didn't really work out that way. The result was that I found myself just reading the "northamererica" file and knocking out the states that were unambiguous, and then checking the rest against timeanddate.com or time.is. It seems wrong that this appeared to be the easiest approach at this scale, so I wonder what others would suggest (with the benefit of hindsight). And then, in most cases, converting the zones via "backward" to the "US/Eastern" American political because doing so seemed more "stable." * I was expecting theory.html to give me a little more guidance on the "right" way to do this. As best as I can tell, the "right" (no pun intended) answer is that I should geolocate each city to longitude/latitude (using some unspecified resource, which seems fine), then use one of the datasets or tools at https://data.iana.org/time-zones/tz-link.html#boundaries to convert those locations to zones. This seemed a bit much. * I was also a little surprised to not find someone with a handy list of United States states and territory mappings to tz identifiers (for those cases where the state/territory/district uniquely mapped to a tzid). Other than the comments in "northamerica" (which are not quite as structured as one might like, but are pretty good). * Then I was faced with the question of what the most stable identifier to use was. For instance, take Boston, Massachusetts. I could record it as America/New_York, or as US/Eastern. For instance, at some point in the future, either Boston or New York might exit the Eastern time zone. Cases: Case 1: If that New York exited and Boston didn't, picking US/Eastern would clearly be the more stable choice. Case 2: And if Boston exited and New York didn't, it wouldn't matter which I chose, I'd have to update my mapping when Boston moved. Case 3: If New York and Boston both exited US/Eastern and went the same way, then America/New_York would be the better choice. Case 4: If New York and Boston both exited US/Eastern and did different things, it's not clear which is the better choice, but similar to Case 2. Lather rinse repeat for 50 states + some territories and DC. My conclusion was that in general, for most locations, the US/* ("backward") form seemed the better choice. (Both Massachusetts and Florida seem to have current proposals to depart US/Eastern and America/New_York.) * So, I'm curious if this anecdote triggers any reactions. Did I miss an obvious way to address this more simply? Is it horrible to have made use of third party websites that lack any sort of auditable authority but are probably correct anyhow. Is this just not a problem that people have to solve with any frequency? Does someone (Paul?) want to convince me that it's Wrong to use the "backward" zones, for the narrow (but common) case of United States of America cities? Thanks for any thoughts. --jhawk(a)mit.edu John Hawkinson

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Need to update Kansas City, MO
by Kevin DeCapite Feb. 25, 2018

Feb. 25, 2018

I would like to propose a change to the database to account for Kansas City, Missouri, USA as having not observed DST between 1946 - 1965. Please see the source book referenced in the link (page 87 in the actual printed pages, standard PDF is the best way to view it): https://archive.org/details/time-changes-in-usa-1966 <https://archive.org/details/time-changes-in-usa-1966> I can also confirm the accuracy of at least this piece of information through testimony. What are the procedures for formally proposing, reviewing & accepting/rejecting such changes? Thank you. --- Kevin DeCapite kevin(a)decapite.net 562.355.8222

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AP & WFLA-TV: Florida House OKs bill asking to skip Daylight Saving Time
by Vance, Frank Feb. 24, 2018

Feb. 24, 2018

http://wfla.com/2018/02/14/florida-house-oks-bill-asking-to-skip-daylight-s… "The [Florida] House voted 103-11 to approve the bill to ask Congress to let Florida remain in Daylight Saving Time all year, meaning while the rest of the Eastern United States sets their clocks back in the fall, Florida wouldn't." Regards, F

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SGT abbreviation is missing from the IANA tz database
by Lu, Can Feb. 21, 2018

Feb. 21, 2018

Hi Paul, Hope you're well. By way of introduction, this is Can, working as a software developer in BAML. We noticed that Asia/Singapore had its SGT abbreviation dropped in tzdb 2017, and the reason being is that the zone abbreviation doesn't correspond to any real-world usage. But it's actually not entirely true, SGT is very commonly used in Singapore and it's also a standard abbreviation for Singapore time. Please refer to: https://en.wikipedia.org/wiki/List_of_time_zone_abbreviations and https://en.wikipedia.org/wiki/List_of_time_zone_abbreviations Wondering if it's possible to add SGT back to IANA db as I believe this change will cause breaks to other libraries rely on it. (We're using pytz for python development). I am happy to discuss and appreciate any thoughts you may have on it. Thanks, Can ---------------------------------------------------------------------- This message, and any attachments, is for the intended recipient(s) only, may contain information that is privileged, confidential and/or proprietary and subject to important terms and conditions available at http://www.bankofamerica.com/emaildisclaimer. If you are not the intended recipient, please delete this message.

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