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https://issues.apache.org/jira/browse/ARROW-18214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alessandro Molina updated ARROW-18214:
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Issue Type: Improvement (was: Bug)
> [C++][R][Python] Use ISO 8601 in character representations of timestamps?
> -------------------------------------------------------------------------
>
> Key: ARROW-18214
> URL: https://issues.apache.org/jira/browse/ARROW-18214
> Project: Apache Arrow
> Issue Type: Improvement
> Reporter: Carl Boettiger
> Priority: Major
> Labels: triaged
>
> Arrow needs to represent datetime / timestamp values as character strings,
> e.g. when writing to CSV or when generating partitions on timestamp-valued
> column. When this occurs, Arrow generates a string such as:
> "2022-11-01 21:12:46.771925+0000"
> In particular, this uses a space instead of a T between the date and time
> components. I believe either is permitted in [RFC
> 3339|https://www.rfc-editor.org/rfc/rfc3339.html#section-5]
> ??5.6. NOTE: ISO 8601 defines date and time separated by "T". Applications
> using this syntax may choose, for the sake of readability, to specify a
> full-date and full-time separated by (say) a space character.??
>
> But as RFC 3339 notes, this is not valid under ISO 8601. It would be
> preferable to stick to the stricter ISO 8601 convention.
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