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IfcYearNumber

Definition from ISO/CD 10303-41:1992: The year as defined in Gregorian Calendar.

NOTE: ISO 8601 defines the Gregorian Calendar.

Type: INTEGER

NOTE Corresponding STEP name: year_number, please refer to ISO/IS 10303-41:1994 for the final definition of the formal standard.
HISTORY New type in IFC Release 1.5.1.

EXPRESS specification:

TYPE IfcYearNumber = INTEGER;
END_TYPE;