Bug in timezone: iana.org or the Go library?

[RickyS]

After seeing some puzzling results from time display, I wrote a Go program to go through the entire timeinfo.zip from iana.org.
The files are in /usr/local/go/lib/time
I even re-ran the script update.bash to get the latest version.  No improvement.

12 places are seen by Go.time to have bogus entries

ERR at Location: 'unknown time zone America/Godthab'
ERR at Location: 'unknown time zone America/Santiago'
ERR at Location: 'unknown time zone Antarctica/Palmer'
ERR at Location: 'unknown time zone Asia/Tel_Aviv'
ERR at Location: 'unknown time zone Asia/Jerusalem'
ERR at Location: 'unknown time zone Asia/Gaza'
ERR at Location: 'unknown time zone Asia/Hebron'
ERR at Location: 'unknown time zone Chile/Continental'
ERR at Location: 'unknown time zone Chile/EasterIsland'
ERR at Location: 'unknown time zone Israel'
ERR at Location: 'unknown time zone Pacific/Fiji'
ERR at Location: 'unknown time zone Pacific/Easter'

Israel and some Pacific islands get hit the hardest.  I can't tell at this point where the bug is, iana.org or the library.
Could you run the program at https://github.com/RickyS/ZoneInfo and see if you get the same results?
If so, I'll file a bug somewhere.
My system is:

Description:    Ubuntu 14.04 LTS
Codename:    trusty
Linux sda8 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64 GNU/Linux
jessie/sid

go version go1.2.1 linux/amd64

You only have to download the 1 source file, it's completely self-contain for easy testing.

  RickyS

P.S. Godthab is in Greenland, not the US.  That's not Go's fault.
P.P.S.  I tried to think of a conspiracy theory that explains all the locations, but I think human error wins out over malice.  Or it's really deep.

[Rob Pike]

I suspect version skew of some kind. I see 0 errors with the list in
the source and the list I get from running your script.

-rob

[Ian Lance Taylor]

On Mon, Jun 2, 2014 at 5:53 PM, Rob Pike <r...@golang.org> wrote:
> I suspect version skew of some kind. I see 0 errors with the list in
> the source and the list I get from running your script.

http://golang.org/issue/8134 ?

Ian


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[Rob Pike]

I was right, version skew. Glad it's fixed. Thanks for reporting it.

-rob

[RickyS]

That looks like it.  Must be version 3 data.

[RickyS]

Go 1.3 Release Candidate 1 for linux/amd64 has the same problem, except that instead of 12 bad cases, there are 18.

The 6 additional cases appear to be:

ERR at Location: 'unknown time zone Asia/Riyadh87'
ERR at Location: 'unknown time zone Asia/Riyadh88'
ERR at Location: 'unknown time zone Asia/Riyadh89'
ERR at Location: 'unknown time zone Mideast/Riyadh87'
ERR at Location: 'unknown time zone Mideast/Riyadh88'
ERR at Location: 'unknown time zone Mideast/Riyadh89'

This is the same program, but a different zoninfo.zip:

 -rw-r--r--   1 root     root       358933 Jun  2 08:23 go/lib/time/zoneinfo.zip  ## go1.3rc1
 -rw-r--r--   1 ricky    ricky      374754 Jun  3 00:43 go1.2.1/lib/time/zoneinfo.zip

[David Symonds]

Are you able to test tip?

[Ricky Seltzer]

On 06/03/2014 10:37 AM, David Symonds wrote:

Are you able to test tip?

Haven't yet.  If you have tip, you can download just the one .go file and see what results you get.
RickyS

[RickyS]

Today I was able to test my program against tip and there are just 6 errors found.  The 6 versions of Riyadh I showed above.
I fetched tip with this, and built it:
    hg clone -u tip https://code.google.com/p/go

It was a little confusing, as  'go version' is the same for tip as for go1.3rc1.
   Ricky

PS I don't think anybody actually lives in "Riyadh89", they live in "Riyadh".  So I wouldn't worry.

[roarof...@gmail.com]

The fix that has been done for this (issue 8134) did not make it into go1.3rc1 

http://golang.org/issue/8134 ? 

[Ian Lance Taylor]

Correct.

it will in the final 1.3 release, though. It's already on the 1.3
release branch.

Ian