TimeZone¶
A Time Zone specifies the amount by which the local time is offset from UTC. A time zone is usually denoted geographically (e.g. Australian Eastern Daylight Time), with a constant value in a given region. The region where it applies and the offset from UTC are specified by a locally recognised governing authority.
NOTE: A designated timezone is associated with a geographic region. However, for a particular region the offset from UTC often varies seasonally, and the dates of the changes may vary from year to year. The timezone designation usually changes for the different seasons (e.g. Australian Eastern Standard Time vs. Australian Eastern Daylight Time). Furthermore, the offset for a timezone may change over longer timescales, though its designation might not.
Detailed guidance about working with time zones is given in http://www.w3.org/TR/timezone/ .
Diagram¶
Other annotations¶
| Property | Value |
|---|---|
| skos:historyNote | In the original 2006 version of OWL-Time, the TimeZone class, with several properties corresponding to a specific model of time-zones, was defined in a separate namespace "http://www.w3.org/2006/timezone#". |
In the current version a class with same local name is put into the main OWL-Time namespace, removing the dependency on the external namespace.
An alignment axiom tzont:TimeZone rdfs:subClassOf time:TimeZone . allows data encoded according to the previous version to be consistent with the updated ontology. | | skos:historyNote | En la versión original de OWL-Time de 2006, se definió, en un espacio de nombres diferente "http://www.w3.org/2006/timezone#", la clase 'huso horario', con varias propiedades específicas correspondientes a un modelo específico de huso horario. En la versión actual hay una clase con el mismo nombre local en el espacio de nombres de OWL-Time, eliminando la dependencia del espacio de nombres externo. Un axioma de alineación permite que los datos codificados de acuerdo con la versión anterior sean consistentes con la ontología actualizada. | | skos:scopeNote | In this implementation TimeZone has no properties defined. It should be thought of as an 'abstract' superclass of all specific timezone implementations. | | skos:scopeNote | En esta implementación 'huso horario' no tiene definidas propiedades. Se debería pensar como una superclase "abstracta" de todas las implementaciones de huso horario específicas. |