| Jc3s5h added a comment. |
In T146499#3406504, @Esc3300 wrote:As a first step, we might just consider that "unused" means "unspecified".
I think it's safe to say the developers would be unwilling to emit contradictory information in the RDF dump format (and related RDF formats) and the JSON format. As I understand it, neither of these formats defines how date/times should be represented, and the representation standards for Wikidata were created by Wikidata developers. Neither standard indicates that the timezone may be omitted. and neither standard indicates the Z at the end of the datetime string may be omitted. Changing these representations would be a breaking change; various parsers written both inside and outside the Wikimedia organization may be unable to read the new format.
For the more distant future, for RDF, since it tries to follow ISO 8601, there will be an issue of how to represent a date with a timezone but no time of day. For example, if I wanted to represent "today" in my time zone in ISO 8601, the nearest I can come to it is "2017-05-2017T-04:00" but I don't think there is consensus about whether this is a valid ISO 8601 representation.
Cc: Esc3300, Lydia_Pintscher, daniel, thiemowmde, Yair_rand, Liuxinyu970226, Pasleim, Aklapper, Jc3s5h, GoranSMilovanovic, Ivana_Isadora, QZanden, Izno, Wikidata-bugs, aude, JeroenDeDauw, Mbch331, Jay8g
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