interval 

specifies a time interval either as a positive integral value or using
one of a set of predefined codes.

Attribute Information

Used By

Element tei:timeline

Source 

<xs:attribute name="interval">
  <xs:annotation>
    <xs:documentation>specifies a time interval either as a positive integral value or using one of a set of predefined codes.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:union memberTypes="xs:float">
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="regular"/>
          <xs:enumeration value="irregular"/>
          <xs:enumeration value="unknown"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
</xs:attribute>

Sample