[tz] [IANA #1173666] Time zone change - Yukon Canada
tim at timtimeonline.com
Fri Jul 3 18:24:12 UTC 2020
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
(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!
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 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:
> This document should have or point to much of the information you're
> looking for:
> 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;
> 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
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the tz