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		Subset of temporal.xsd for WCS 1.2 profile. Primary editor: Primary editor: Arliss Whiteside.
			
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			Direct representation of a temporal position
		
	
	
	
		
			Direct representation of a temporal position. 
      Indeterminate time values are also allowed, as described in ISO 19108. The 
      indeterminatePosition attribute can be used alone or it can qualify a specific value for temporal 
      position (e.g. before 2002-12, after 1019624400). 
      For time values that identify position within a calendar, the calendarEraName attribute provides 
      the name of the calendar era to which the date is referenced (e.g. the Meiji era of the 
      Japanese calendar).
		
		
			
				
				
				
			
		
	
	
	
		
			The ISO 19108:2002 hierarchy of subtypes for temporal position are  
      collapsed by defining a union of XML Schema simple types for indicating temporal position  
      relative to a specific reference system. 
      
      Dates and dateTime may be indicated with varying degrees of precision.  
      dateTime by itself does not allow right-truncation, except for fractions of seconds. 
      When used with non-Gregorian calendars based on years, months, days, 
      the same lexical representation should still be used, with leading zeros added if the 
      year value would otherwise have fewer than four digits.  
      
      An ordinal position may be referenced via URI identifying the definition of an ordinal era.  
      
      A time coordinate value is indicated as a decimal (e.g. UNIX time, GPS calendar).
		
		
	
	
	
		
			Calendar dates may be indicated with varying degrees of precision, 
      using year, year-month, date. 
      When used with non-Gregorian calendars based on years, months, days, 
      the same lexical representation should still be used, with leading zeros added if the 
      year value would otherwise have fewer than four digits.  
      time is used for a position that recurs daily (see clause 5.4.4.2 of ISO 19108:2002).
		
		
	
	
	
		
			This enumerated data type specifies values for indeterminate positions.
		
		
			
			
			
			
		
	
	




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