Date types

Last updated: 19/04/2022

Data objects can have a variety of dates associated with them, and they all need to be categorised so that filtering and searching can work correctly. The available date types are listed below. With one exception, types 11 through 19 are all taken from DataCite, and the names and descriptions are identical to those in DataCite. The exception is type 51, which was added by ECRIN.

Types 52 through to 65 were all added to accommodate the different date types found in PubMed data.

id	name	description	applies_to_papers_only	use_in_data_entry	source
11	Accepted	The date that the publisher accepted the resource into their system. To indicate the start of an embargo period, use Submitted or Accepted, as appropriate.	false	false	DataCite
12	Available	The date the resource is made publicly available. May be a range. To indicate the end of an embargo period, use Available.	false	true	DataCite
51	Controlled access in force	The date the resource is made available under controlled access of some form. May be a range. To indicate the end of such a period, use Available.	false	false	ECRIN
13	Copyrighted	The specific, documented date at which the resource receives a copyrighted status, if applicable.	false	false	DataCite
14	Collected	The date or date range in which the resource content was collected. To indicate precise or particular timeframes in which research was conducted.	false	true	DataCite
15	Created	The date the resource itself was put together; this could be a date range or a single date for a final component, e.g., the finalised file with all of the data. Recommended for discovery.	false	true	DataCite
16	Issued	The date that the resource is published or distributed e.g. to a data centre.	false	false	DataCite
17	Submitted	The date the creator submits the resource to the publisher. This could be different from Accepted if the publisher then applies a selection process. Recommended for discovery.	false	true	DataCite
18	Updated	The date of the last update to the resource, when the resource is being added to. May be a range.	false	true	DataCite
19	Valid	The date or date range during which the dataset or resource is accurate.	false	false	DataCite
52	PubMed citation created	The date in the Pubmed XML, in the element 'DateCreated'.	true	false	PubMed
53	PubMed citation revised	The date in the Pubmed XML, in the element 'DateRevised'.	true	false	PubMed
54	PubMed citation completed	The date in the Pubmed XML, in the element 'DateCompleted'.	true	false	PubMed
55	E-published	Date of electronic publication.	true	false	PubMed
56	P-published	Date of print publication.	true	false	PubMed
57	Revised	Date an article was revised in publication by the authors.	true	false	PubMed
58	E-published ahead of print publication	Date an article was published electronically, ahead of print publication (PubMed date category).	true	false	PubMed
59	Retracted	Date the publisher retracted an article or a resource.	true	false	PubMed
60	Added to e-collection	Date an article was included in an electronic collection (similar to an issue).	true	false	PubMed
61	Added to PMC	Date article was added to PMC.	true	false	PubMed
62	Added to Pubmed	Date the citation was added to PubMed, unless the citation is added to PubMed more than twelve months since the date of publication. In that case, the PubMed date is set to the date of publication.	true	false	PubMed
63	Added to Medline	Date the citation completed Medline processing. Up until the citation has been indexed for Medline, the Medline date is the same as the Entrez date.	true	false	PubMed
64	PMC embargo release	Date a full-text article was released from embargo in PubMed Central (PMC).	true	false	PubMed
65	Added to Entrez	Date when PubMed entry entered into the e-utils Entrez system.	true	false	PubMed
90	Other	Date type not defined elsewhere.	false	true	ECRIN
0	Not yet known	Dummy value supplied by default on entity creation.	false	false	ECRIN