XML/XML Schema/dateTime

xs:pattern with xs:dateTime

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  targetNamespace="http://www.wbex.ru" xmlns="http://www.wbex.ru"
  elementFormDefault="qualified">
  
  <xsd:element name="data" type="noTimeZone"/>
  
  
  <xsd:simpleType name="noTimeZone">
    <xsd:restriction base="xsd:dateTime">
      <xsd:pattern value=".*T[^Z+-]*" />
    </xsd:restriction>
  </xsd:simpleType>
</xsd:schema>