<xsd:element name="WeekDays" minOccurs="0">
    <xsd:annotation>
        <xsd:documentation>The collection of Weekdays that defines this calendar.</xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:sequence>
            <xsd:element name="WeekDay" minOccurs="0" maxOccurs="unbounded">
                <xsd:annotation>
                    <xsd:documentation>A weekday either defines regular days of the week or exception days in the calendar.</xsd:documentation>
                </xsd:annotation>
                <xsd:complexType>
                    <xsd:sequence>
                        <xsd:element name="DayType" minOccurs="1">
                            <xsd:annotation>
                                <xsd:documentation>The type of day. Values are: 0=Exception, 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday, 7=Sunday</xsd:documentation>
                            </xsd:annotation>
                            <xsd:simpleType>
                                <xsd:restriction base="xsd:integer">
                                    <xsd:enumeration value="0" />
                                    <xsd:enumeration value="1" />
                                    <xsd:enumeration value="2" />
                                    <xsd:enumeration value="3" />
                                    <xsd:enumeration value="4" />
                                    <xsd:enumeration value="5" />
                                    <xsd:enumeration value="6" />
                                    <xsd:enumeration value="7" />
                                </xsd:restriction>
                            </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="DayWorking" type="xsd:boolean" minOccurs="0">
                            <xsd:annotation>
                                <xsd:documentation>Whether the specified date or day type is working.</xsd:documentation>
                            </xsd:annotation>
                        </xsd:element>
                        <xsd:element name="TimePeriod" minOccurs="0">
                            <xsd:annotation>
                                <xsd:documentation>Defines a contiguous set of exception days.</xsd:documentation>
                            </xsd:annotation>
                            <xsd:complexType>
                                <xsd:sequence>
                                    <xsd:element name="FromDate" type="xsd:dateTime" minOccurs="0">
                                        <xsd:annotation>
                                            <xsd:documentation>The beginning of the exception time.</xsd:documentation>
                                        </xsd:annotation>
                                    </xsd:element>
                                    <xsd:element name="ToDate" type="xsd:dateTime" minOccurs="0">
                                        <xsd:annotation>
                                            <xsd:documentation>The end of the exception time.</xsd:documentation>
                                        </xsd:annotation>
                                    </xsd:element>
                                </xsd:sequence>
                            </xsd:complexType>
                        </xsd:element>
                        <xsd:element name="WorkingTimes" minOccurs="0">
                            <xsd:annotation>
                                <xsd:documentation>The collection of working times that define the time worked on the weekday.  One of these must be present, and there may be no more than five.</xsd:documentation>
                            </xsd:annotation>
                            <xsd:complexType>
                                <xsd:sequence>
                                    <xsd:choice>
                                        <xsd:element name="WorkingTime" minOccurs="0" maxOccurs="5">
                                            <xsd:annotation>
                                                <xsd:documentation>Defines the working time during the weekday.</xsd:documentation>
                                            </xsd:annotation>
                                            <xsd:complexType>
                                                <xsd:sequence>
                                                    <xsd:element name="FromTime" type="xsd:time" minOccurs="0">
                                                        <xsd:annotation>
                                                            <xsd:documentation>The beginning of the working time.</xsd:documentation>
                                                        </xsd:annotation>
                                                    </xsd:element>
                                                    <xsd:element name="ToTime" type="xsd:time" minOccurs="0">
                                                        <xsd:annotation>
                                                            <xsd:documentation>The end of the working time.</xsd:documentation>
                                                        </xsd:annotation>
                                                    </xsd:element>
                                                </xsd:sequence>
                                            </xsd:complexType>
                                        </xsd:element>
                                    </xsd:choice>
                                </xsd:sequence>
                            </xsd:complexType>
                        </xsd:element>
                    </xsd:sequence>
                </xsd:complexType>
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>
</xsd:element>