<element name="TimeClock" type="gml:TimeClockType" substitutionGroup="gml:TimeReferenceSystem">
<annotation>
<documentation>A clock provides a basis for defining temporal position within a day. A clock shall be used with a calendar in order to provide a complete description of a temporal position within a specific day.
gml:TimeClock adds the following properties to those inherited from gml:TimeReferenceSystemType:
- gml:referenceEvent is the name or description of an event, such as solar noon or sunrise, which fixes the position of the base scale of the clock.
- gml:referenceTime specifies the time of day associated with the reference event expressed as a time of day in the given clock. The reference time is usually the origin of the clock scale.
- gml:utcReference specifies the 24 hour local or UTC time that corresponds to the reference time.
- gml:dateBasis contains or references the calendars that use this clock.</documentation>
</annotation>
</element>
|