[Wikidata-bugs] [Maniphest] [Created] T179068: Support time zones in xsd:dateTime

[Hjfocs]

Hjfocs created this task. Hjfocs added projects: Wikidata-Query-Service, Wikidata-primary-sources, Wikidata. Herald added a subscriber: Aklapper. Herald added a project: Discovery.

TASK DESCRIPTION

WikibaseDate exclusively handles the UTC time zone, i.e., the Z character (cf. W3C specs):
https://github.com/wikimedia/wikidata-query-rdf/blob/master/common/src/main/java/org/wikidata/query/rdf/common/WikibaseDate.java#L30

This may conflict with data serialized through other RDF libraries.
For instance, Python rdflib automatically translates Z into +00:00, which prevents proper ingestion into Blazegraph, due to:
https://github.com/wikimedia/wikidata-query-rdf/blob/master/common/src/main/java/org/wikidata/query/rdf/common/WikibaseDate.java#L46

TASK DETAIL

https://phabricator.wikimedia.org/T179068

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To: Hjfocs
Cc: Aklapper, Hjfocs, Lahi, Lucas_Werkmeister_WMDE, GoranSMilovanovic, Kiailandi, QZanden, EBjune, dachary, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Ricordisamoa, Sjoerddebruin, Tpt, Mbch331

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