[tz] [IANA #1173666] Time zone change - Yukon Canada

Fri Jul 3 18:40:06 UTC 2020

Thanks for keeping us in the loop, then.

Since tz is used directly by many operating systems — Apple (including
iOS), Google (including Android), and most Linux distributions — most
day-to-day users should be good to go when the change is finalized, if they
aren't already.  For what it's worth, it seems Microsoft have also picked
up on the change
<https://techcommunity.microsoft.com/t5/daylight-saving-time-time-zone/time-zone-updates-for-yukon-canada/ba-p/1334689>,
though from the date of their announcement, it's possible they got the news
from us.

Other software which does not rely on the operating system's timezone
definitions may require their own updates; those concerns are downstream
from this project.

--
Tim Parenti

On Fri, 3 Jul 2020 at 14:31, <Andrew.Smith at gov.yk.ca> wrote:

> That is excellent to hear, Tim.
>
> Yes, I had known that some time services has interpreted our announcement
> as the ‘done and dusted’ finalization. At that point in March it was a
> policy commitment, and the news on that nuance was not totally clear. We
> just do have some legal process to finish off, which we are on track to do,
> so I don’t think we will end up in a tough spot.
>
> I will let you know when we make our change legally final so we can all
> rest assured that November 2 will still see us on UTC -7.
>
>
>
> All the best.
>
>
>
> *Andrew G. Smith*
>
> Intergovernmental Relations
>
> Executive Council Office
>
> Government of Yukon
>
> C: 867-335-6008
>
>
>
> *From:* Tim Parenti <tim at timtimeonline.com>
> *Sent:* July 3, 2020 11:24 AM
> *To:* Andrew.Smith <Andrew.Smith at gov.yk.ca>
> *Cc:* Time Zone Mailing List <tz at iana.org>
> *Subject:* Re: [tz] [IANA #1173666] Time zone change - Yukon Canada
>
>
>
> Andrew,
>
>
>
> We made this change in our codebase on 5 March 2020, based on 4 March CBC
> reporting and a government press release stating that Yukon would be
> remaining permanently on UTC-7 following its spring-forward transition on 8
> March.  As such, both America/Dawson and America/Whitehorse have been
> updated accordingly:
>
>
> https://github.com/eggert/tz/commit/e6c1f0e7daa0b6c5131b2976c6be9190845d2b49
>
>
>
> (Canada/Yukon is a long-deprecated backwards-compatibility link to
> America/Whitehorse, so need not be updated separately.)
>
>
>
> This change is already included in our latest release, 2020a, which was
> published on 23 April 2020.  Although it can sometimes take several weeks
> or months after publication for our releases to make it to downstream
> distributions and software updates for various computer and mobile
> platforms, many recent devices that are receiving regular updates should
> already have this change, and many more are likely to receive it before
> Yukon time diverges from our old predictions in November.
>
>
>
> One (hopefully small) point: Our understanding from the press release at
> https://yukon.ca/en/news/yukon-end-seasonal-time-change was that this
> decision was already finalized.  If it is not, this is not a major issue,
> but do note that tz's current predictions published in 2020a do not have
> Yukon falling back on 1 November 2020… so if for some reason the regulatory
> processes should be delayed, please contact us as soon as that's apparent.
>
>
>
> Hope this helps!
>
>
> --
> Tim Parenti
>
>
>
>
>
> On Fri, 3 Jul 2020 at 13:57, <Andrew.Smith at gov.yk.ca> wrote:
>
> Good day.
>
> I work for the Government of Yukon in Canada. We are in the process of
> revising our definition of time to be permanently on UTC -7, no longer
> observing a twice-annual time change.
> I was on the hunt for authoritative standards related to time, and saw the
> IANA come up as caretaker of the time zone database, which appears to be
> relied on for software and systems. I am contacting you to see if there is
> any process beyond notification to making this adjustment in your TZ
> database, and perhaps to know if there are other agencies that should be
> aware of what Yukon is planning.
> From what I see now, TZ database names "America/Dawson",
> "America/Whitehorse" and "Canada/Yukon" would be affected by this change.
>
> Our regulation is not yet complete, so it is not law at this time and I am
> not looking for immediate change. We are aiming for finalization here by
> November 1, 2020.
> Hope to hear from you soon.
>
> Andrew
>
> Andrew G. Smith
> Intergovernmental Relations
> Executive Council Office
> Government of Yukon
> C: 867-335-6008
>
> -----Original Message-----
> From: Amanda Baber via RT <iana-questions at iana.org>
> Sent: July 2, 2020 3:48 PM
> To: Andrew.Smith <Andrew.Smith at gov.yk.ca>
> Subject: [IANA #1173666] Time zone change - Yukon Canada
>
> Dear Andrew,
>
> Thank you for contacting us.
>
> IANA hosts the Time Zone Database, but the database is managed by the Time
> Zone Coordinator in conjunction with a mailing list. You can find find
> mailing list information here:
>
> https://www.iana.org/time-zones
>
> This document should have or point to much of the information you're
> looking for:
>
> https://data.iana.org/time-zones/tz-link.html
>
> As is noted at the link above, "If your government plans to change its
> time zone boundaries or daylight saving rules, inform tz at iana.org well in
> advance, as this will coordinate updates to many cell phones, computers,
> and other devices around the world. With less than a year's notice there is
> a good chance that some computer-based clocks will operate incorrectly
> after the change, due to delays in propagating updates to software and
> data. The shorter the notice, the more likely clock problems will arise;
> see
> https://imsva91-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3a%2f%2fcodeofmatt.com%2fon%2dthe%2dtiming%2dof%2dtime%2dzone%2dchanges%2f&umid=9AEE9BE6-A97D-3305-9566-A908474DCD53&auth=c132af8ee7c9d1278d61a701569070a095ce962e-ec0cbfbd0bcf9eb23a871cfbba73d9387a590c0d
> for examples."
>
> Best regards,
>
> Amanda Baber
> Lead IANA Services Specialist
>
> On Thu Jul 02 22:20:44 2020, Andrew.Smith at gov.yk.ca wrote:
> > Good day.
> >
> > I work for the Government of Yukon in Canada. We are in the process of
> > revising our definition of time to be permanently on UTC -7, no longer
> > observing a twice-annual time change.
> > I was on the hunt for authoritative standards related to time, and saw
> > the IANA come up as caretaker of the time zone database, which appears
> > to be relied on for software and systems. I started with ISO 8601, but
> > couldn't see the full text to know if there are time zone standards
> > there. I am contacting you to see your TZ database is a widely adopted
> > and authoritative as it seems, to see if there is any process to
> > making this adjustment in your TZ database, and perhaps to know if
> > there are other agencies that should be aware of what Yukon is
> > planning.
> > From what I see now, TZ database names "America/Dawson",
> > "America/Whitehorse" and "Canada/Yukon" would be affected by this
> > change.
> >
> > Our regulation is not yet complete, so it is not law at this time and
> > I am not looking for immediate change. We are aiming for finalization
> > here by November 1, 2020.
> > Hope to hear from you soon.
> >
> > Andrew
> >
> >
> > [cid:image003.png at 01D65084.40C16690]
> >
> > Andrew G. Smith
> > Intergovernmental Relations
> > Executive Council Office
> > C 867-335-6008 | Yukon.ca
>
>
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