yyyy-mm-dd 

Calendar dates are represented yyyy-mm-dd format, following ISO 8601. This is a W3C XML Schema date type, but without the optional timezone data.

Simple Type Information

Used By

Element encoding/encoding-date

Source 

<xs:simpleType name="yyyy-mm-dd">
  <xs:annotation>
    <xs:documentation>Calendar dates are represented yyyy-mm-dd format, following ISO 8601. This is a W3C XML Schema date type, but without the optional timezone data.</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:date">
    <xs:pattern value="[^:Z]*"/>
  </xs:restriction>
</xs:simpleType>