DateType

Provides the structure of a Date element, which allows a choice between single, simple dates (of BaseDateType) or date ranges. If the Date element contains a range, Cycle may be used to indicate occurrence of this range within a series of ranges as an integer identifying the cycle, i.e. the 4th wave of a data collection cycle would have 4. ISO-formatted dates are required for all standard date fields; a historically-formatted date may also be provided to reflect the specific content of a legacy document or common practice within an agency or for publication. All uses of DateType should be optional.

Properties

Name	Type		Description
SimpleDate	cogsDate	0..1	A single point in time. If a duration is expressed as a SimpleDate it is defining a period of time without a designated Start or End date.
HistoricalDate	HistoricalDateType	0..1	A simple date expressed in a historical date format, including a specification of the date format and calendar used.
StartDate	cogsDate	0..1	Start of a date range. If there is a start date with no end date provided, this implies that the end date is unknown but that the date being recorded is not just a simple date but a range of unknown duration.
HistoricalStartDate	HistoricalDateType	0..1	A start date expressed in a historical date format, including a specification of the date format and calendar used.
EndDate	cogsDate	0..1	End of a date range with a known start date.
HistoricalEndDate	HistoricalDateType	0..1	An end date expressed in a historical date format, including a specification of the date format and calendar used.
Cycle	int	0..1	Use to indicate occurrence of this range within a series of ranges as an integer identifying the cycle, i.e. the 4th wave of a data collection cycle would have 4.

Item Type Hierarchy

• DateType

  • AccessRestrictionDateType

  • DataCollectionFrequencyType

  • ReferenceDateType

Relationships

The following identified item types reference this type.