Time Ontology in OWL

The Semantic Web Best Practices and Deployment Working Group has released the First Public Working Draft of Time Ontology in OWL. The OWL-Time work follows from the DAML-Time work and brings together a number of classifications related to time. Developed for describing the temporal content of Web pages and the temporal properties of Web services, the vocabulary can express datetime, relationships between intervals and between instants, and durations of intervals. A Time Zone Resource in OWL is provided for the US and the entire world