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lib/time: update tzdata before release #22487

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tklauser opened this Issue Oct 29, 2017 · 14 comments

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tklauser commented Oct 29, 2017

The timezone database in lib/time should be updated shortly before the 1.10 release (to whatever tzdata release is current then). There was https://golang.org/cl/74230 attempting to do this just now, but it was too early. @ALTree suggested to open an issue about this, so we don't forget.

@ALTree ALTree added this to the Go1.10 milestone Oct 29, 2017

@ALTree ALTree added the NeedsFix label Oct 29, 2017

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gopherbot commented Dec 6, 2017

Change https://golang.org/cl/74230 mentions this issue: lib/time: update tzdata to 2017c

gopherbot pushed a commit that referenced this issue Dec 6, 2017

lib/time: update tzdata to 2017c
Update the tzdata database to version 2017c (released 2017-10-20).

Updates #22487

Change-Id: If58ff89173ef1f1044075505f42ff132b57795f0
Reviewed-on: https://go-review.googlesource.com/74230
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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bradfitz commented Jan 4, 2018

2017c is still the latest. Will regarget to Go 1.11.

@bradfitz bradfitz modified the milestones: Go1.10, Go1.11 Jan 4, 2018

@bradfitz bradfitz changed the title from lib/time: update tzdata before 1.10 release to lib/time: update tzdata before release Jan 4, 2018

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ksshannon commented Jan 16, 2018

2018a came out a few days ago:

https://www.iana.org/time-zones

I'm assuming it's too late in the cycle, but just thought I'd post.

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ALTree commented Jan 16, 2018

That's weird, they didn't even announce it in the mailing list: http://mm.icann.org/pipermail/tz-announce/

Anyway I've looked at the CHANGELOG and there are a few changes in the timezones data, here's the short version:

Release 2018a

  - São Tomé and Príncipe switched from +00 to +01.
  - Brazil's DST will now start on November's first Sunday.
  - Ireland's standard time is now in the summer, not the winter.

We could try to update it and see if anything breaks (usually it's the tests). If everything is fine, maybe it could be shipped with go1.10

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ALTree commented Jan 16, 2018

At the moment our update script is broken because the 2018a release is not yet published at https://data.iana.org/time-zones/releases/, which is the place we visit to download the data. Considering this (and the fact that the new release wasn't even announced in the tz-announce mailing list) we should probably wait.

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ksshannon commented Jan 16, 2018

Agreed, I've downloaded the archives and make fails, so I think it may have issues.

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ksshannon commented Jan 17, 2018

There was an issue with the archive, 2018b will be released in a few days:

http://mm.icann.org/pipermail/tz/2018-January/025814.html

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ksshannon commented Jan 23, 2018

Another issue with 2018b, but 2018c finally made it to the announce list:

http://mm.icann.org/pipermail/tz-announce/2018-January/000048.html

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bradfitz commented Jan 23, 2018

Doesn't seem worth doing this late in the cycle. @ianlancetaylor?

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ianlancetaylor commented Jan 24, 2018

I have no opinion. I note that there is some disagreement going on about Irish time; I don't know how or whether that was resolved.

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gopherbot commented Jan 24, 2018

Change https://golang.org/cl/89375 mentions this issue: lib/time: follow redirects in curl

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ksshannon commented Jan 24, 2018

The Irish issue was reverted. It sounded a little messy. It may just be a good idea to wait, but I have no strong opinion either. They did change the location of the archives, which the referenced CL fixes when the tree opens up.

gopherbot pushed a commit that referenced this issue Jan 24, 2018

lib/time: follow redirects in curl
Starting on or about the 2018c archives, www.iana.org is redirected to
data.iana.org.  Tell curl to follow the redirect.

Updates: #22487

Change-Id: I00acada1a3ba01ef701d6d4ffae6cc2cbb6a068f
Reviewed-on: https://go-review.googlesource.com/89375
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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gopherbot commented Jun 11, 2018

Change https://golang.org/cl/117855 mentions this issue: lib/time: update vendored tzdata to release 2018e

gopherbot pushed a commit that referenced this issue Jun 11, 2018

lib/time: update vendored tzdata to release 2018e
It has been a long time since the last time the vendored zoneinfo in
lib/time was updated, and we're well into the freeze. Update it to the
lastest release from IANA.

Updates #22487

Change-Id: Ib9a8eb409554848285fc88363dbb04ed9d6d9eb0
Reviewed-on: https://go-review.googlesource.com/117855
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

@tklauser tklauser modified the milestones: Go1.11, Go1.12 Jul 10, 2018

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gopherbot commented Nov 27, 2018

Change https://golang.org/cl/151299 mentions this issue: lib/time: update tzdata to 2018g

gopherbot pushed a commit that referenced this issue Nov 28, 2018

lib/time: update tzdata to 2018g
Now that the tree has been frozen for some time, update the tzdata
database to version 2018g (released 2018-10-26) for Go 1.12.

Updates #22487

Change-Id: I9e82bcdaef28d308643c08c9fd3472e4c14a196e
Reviewed-on: https://go-review.googlesource.com/c/151299
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

@tklauser tklauser modified the milestones: Go1.12, Go1.13 Nov 28, 2018

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