本文件规定了健康信息学中明确表示时间相关表达所需的一组表征原语和语义关系。本文档不引入或强制使用特定的时间本体，也不强制使用此类本体的固定表示方案。相反，本文件为句法和语义表示提供了一套原则，允许特定本体在时间上的可比性，以及明确表达的时间相关信息的交换。 本文件既适用于现实世界中发生的实际现象的描述（如病历登记），也适用于概念的描述（如医学知识库）。交叉引用:ISO 8601-1ISO 8601-2ISO 80000-3ISO 1087-1购买时可用的所有现行修订均包含在本文件的购买中。

This document specifies a set of representational primitives and semantic relations needed for an unambiguous representation of explicit time-related expressions in health informatics. This document does not introduce or force a specific ontology of time, nor does it force the use of a fixed representation scheme for such an ontology. Rather this document provides a set of principles for syntactic and semantic representation that allow the comparability of specific ontologies on time, and the exchange of time-related information that is expressed explicitly. This document applies to both the representation of actual phenomena occurring in the real world (e.g. registrations in medical records) and to the description of concepts (e.g. medical knowledge bases).Cross References:ISO 8601-1ISO 8601-2ISO 80000-3ISO 1087-1All current amendments available at time of purchase are included with the purchase of this document.