xs:untypedAtomic 2002-10-10T23:02:12Z 2002-10-10Z 23:02:12Z P1Y PT1S P1M 3000 40000 2 16 0 -4 5 6 7 8 9 10 11 12 13 14 1976-02Z 2005-12:00 --12-25-14:00 ---25-14:00 --12-14:00 true aaaa FFFF http://example.com/ localName An xs:string normalizedString token language NMTOKEN Name NCName ID IDREF ENTITY