Raul,

How do you get to these 'fine grain values'?  They are not in the HTML rendition at the URLs you quote, and when I go to the RDF for these concepts I don't see any date information.  Is this a Wikidata secret?

I would have thought that the correct approach would be to encode these values as gYear, and just record the four-digit year.

Richard

On 31/08/2015 18:19, Raul Kern wrote:
Hi,
how is the datetime value with precision of one year stored?

For example for birt date in https://www.wikidata.org/wiki/Q299687
fine grain value for "1700" is "1.01.1700"


But for population date field in https://www.wikidata.org/wiki/Q216
the fine grain value for "2014" is "30.11.2013"
Which is kind of unexpected.



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Raul

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Richard Light