Issue meta: Publication dates
Capture publication date of an issue in the pub-date element.
/issue-meta/pub-date
Use a pub-type attribute to identify the publication event the date represents. The following table explains the allowed values. No other values are permitted.
| pub-type value | Description | Example |
|---|---|---|
collection |
To capture the online publication date of an issue |
<pub-date pub-type="collection" iso-8601-date="2018-09-01"> <day>01</day> <month>09</month> <year>2018</year> </pub-date> |
An issue meta file must have a collection
date.
The date captured here must match exactly the date found in the article meta for every article in the issue. See Publication dates for more details.
Within the pub-date element, capture a day, month, and year element.
The month value must be an integer between 01 and 12 inclusive. The day value must be an integer between 01-31 inclusive.
On the pub-date element, capture a iso-8601-date
attribute whose value is an ISO 8601 date (YYYY-MM-DD
) corresponding to the
values of the year, month, and
day elements.
Embargoed issue
If an issue is embargoed from publication until a specific time, capture the time as
part of the iso-8601-date attribute. The time is given in UTC
format. The iso-8601-date attribute will have the format
YYYY-MM-DDThh:mm:ssZ
.
In this example, the issue is embargoed until midnight UTC on 2 September 2020.
<pub-date pub-type="collection" iso-8601-date="2020-09-02T00:00:00Z"> <day>02</day> <month>09</month> <year>2020</year> </pub-date>