This metadata element addresses the requirement to have information on the temporal dimension of the data as referred to in Article 8(2)(d) of Directive 2007/2/EC. At least one of the metadata elements referred to in points 5.1 to 5.4 shall be provided.
The value domain of the metadata elements referred to in points 5.1 to 5.4 is a set of dates. Each date shall refer to a temporal reference system and shall be expressed in a form compatible with that system. The default reference system shall be the Gregorian calendar, with dates expressed in accordance with ISO 8601.
The temporal extent defines the time period covered by the content of the resource. This time period may be expressed as any of the following:
an individual date,
an interval of dates expressed through the starting date and end date of the interval,
a mix of individual dates and intervals of dates.
This is the date of publication of the resource when available, or the date of entry into force. There may be more than one date of publication.
This is the date of last revision of the resource, if the resource has been revised. There shall not be more than one date of last revision.
This is the date of creation of the resource. There shall not be more than one date of creation.