UK Government Data Standards Catalogue

Metadata Value
Data Element

Year and Month
Is Part Of
Temporal
Has Parts  
Version 1.0 
Status Release 
Previous Versions  
Later Versions  
Date Agreed 23 November 2004

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Name

Year and Month
Description The year and month of an event.
Business Format YYYY-MM (eg 1997-07)
Element Type Data Type
XML Schema
Validation
Values less than 10 in the month or year elements should be entered with a zero in the first position.
Values
YYYY = four-digit year
MM = two-digit month (01=January, etc.)
DefaultValue
Owner W3C
Based On W3C Date and Time Formats, 15 September 1997.
Verification
Comments
  • For further information see http://www.w3.org/TR/NOTE-datetime
  • This is a reduced precision date. If compared with a greater prescision date such as YYYY-MM-DD, the result should be the difference in months without any rounding.
  • Use xs:gYearMonth for XML Schemas.