DateTimeWindowGroup 

Date Range = [begin-end] : both limits are included in the range.
either begin or end can be used alone, therefore restricting only one end of the
range

Attribute Group Information

Attributes

QName Type Fixed Default Use Inheritable Annotation
Begin DateOrDurationType optional 
The lower limit corresponds to the earliest date or
time
CountingFrom DateDurationStartCodeType optional
End DateOrDurationType optional
UnitBegin DurationUnitCodeType optional
UnitEnd DurationUnitCodeType optional

Used By

Complex Types DateTimeWindowType, FOP_VoucherType, StockType

Source 

<xs:attributeGroup name="DateTimeWindowGroup">
  <xs:annotation>
    <xs:documentation>Date Range = [begin-end] : both limits are included in the range. either begin or end can be used alone, therefore restricting only one end of the range</xs:documentation>
  </xs:annotation>
  <xs:attribute name="Begin" type="DateOrDurationType" use="optional">
    <xs:annotation>
      <xs:documentation>The lower limit corresponds to the earliest date or time</xs:documentation>
    </xs:annotation>
  </xs:attribute>
  <xs:attribute name="End" type="DateOrDurationType" use="optional"/>
  <xs:attribute name="CountingFrom" type="DateDurationStartCodeType" use="optional"/>
  <xs:attribute name="UnitBegin" type="DurationUnitCodeType" use="optional"/>
  <xs:attribute name="UnitEnd" type="DurationUnitCodeType" use="optional"/>
</xs:attributeGroup>