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https://issues.apache.org/jira/browse/ARROW-4446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16761540#comment-16761540
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shyam narayan singh commented on ARROW-4446:
--------------------------------------------

For the timezone implementation, we are using the operating systems timezone 
database. For windows, the expectation is IANA database is downloaded into the 
required location as specified below.

REF : [https://howardhinnant.github.io/date/tz.html]

1. USE_OS_TZDB : If {{USE_OS_TZDB}} is {{1}} then this library will use the 
zic-compiled time zone database provided by your OS. This option relieves you 
of having to install the IANA time zone database, either manually, or 
automatically with {{AUTO_DOWNLOAD}}. This option is not available on Windows.

2. If the macro {{INSTALL}} is not defined, the default location of the 
database is {{~/Downloads/tzdata}}({{%homedrive%\%homepath%\downloads\tzdata}} 
on Windows).

3. On Windows, {{HAS_REMOTE_API}} defaults to {{0}}. Everywhere else it 
defaults to {{1}}. This is because [{{libcurl}}|https://curl.haxx.se/libcurl/] 
comes preinstalled everywhere but Windows, but it is available for Windows.

4. If you want to enable {{HAS_REMOTE_API}} and/or {{AUTO_DOWNLOAD}} on Windows 
you will have to manually install [curl|https://curl.haxx.se/libcurl/] and 
[7-zip|http://www.7-zip.org/] into their default locations.

5. If you do not enable {{HAS_REMOTE_API}}, you will need to also install 
[http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml] into 
your {{install}} location. This will be done for you if you have enabled 
{{HAS_REMOTE_API}} and let {{AUTO_DOWNLOAD}} default to 1.

> [Python] Run Gandiva tests on Windows and Appveyor
> --------------------------------------------------
>
>                 Key: ARROW-4446
>                 URL: https://issues.apache.org/jira/browse/ARROW-4446
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++, C++ - Gandiva
>            Reporter: Wes McKinney
>            Assignee: Wes McKinney
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.13.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>




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