GB/T 45434.3-2025 中国标准时间 第3部分：公报

ICS35.240

CCSL60

中华人民共和国国家标准

GB/T45434.3—2025

中国标准时间第3部分：公报

Chinastandardtime—Part3：Bulletin

2025⁃03⁃28发布2025⁃03⁃28实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T45434.3—2025

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语、定义和缩略语···································································································1

3.1术语和定义········································································································1

3.2缩略语··············································································································1

4一般要求·················································································································1

5公报结构·················································································································2

5.1封面·················································································································2

5.2正文·················································································································2

5.3附录·················································································································2

6公报数据项信息········································································································2

6.1CST（k）时间偏差信息···························································································2

6.2守时钟的相对权重信息·························································································3

6.3守时钟的频率偏差信息·························································································3

6.4守时钟的频率漂移率信息······················································································3

6.5CST时间偏差信息······························································································3

6.6BDT时间偏差信息······························································································4

附录A（资料性）公报封面格式·······················································································5

附录B（规范性）公报必选项表格样式··············································································6

附录C（资料性）公报可选项表格样式··············································································7

Ⅰ

GB/T45434.3—2025

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规定

起草。

本文件是GB/T45434《中国标准时间》的第3部分。GB/T45434已经发布了以下部分：

——第1部分：通则；

——第2部分：元数据；

——第3部分：公报。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中央军委装备发展部提出。

本文件由全国北斗卫星导航标准化技术委员会（SAC/TC544）归口。

本文件起草单位：中国计量科学研究院、中国卫星导航工程中心、北京卫星导航中心、北京无线电

计量测试研究所。

本文件主要起草人：张爱敏、方向、王玉琢、焦文海、史丰丰、张升康、徐清华、刘莹、王学运、徐金锋。

Ⅲ

GB/T45434.3—2025

引言

标准时间广泛应用于通信、交通、金融以及科学研究和国防建设等诸多方面，影响着人类生产生活

的方方面面，在现代社会中发挥着不可替代的作用。GB/T45434旨在明确中国标准时间产生、管理与

服务的准则，拟由7个部分构成。

——第1部分：通则。目的在于确立适用于中国标准时间的产生、保持、比对、发布和授时服务的

基本要求。

——第2部分：元数据。目的在于确立适用于中国标准时间产生与发布涉及数据资源的内容和格

式，定义元数据实体及元数据属性。

——第3部分：公报。目的在于确立适用于中国标准时间公报编制的方法和要求。

——第4部分：基准钟。目的在于确立适用于中国标准时间产生的基准钟的报数、使用和评估等

相关要求。

——第5部分：比对链路。目的在于确立适用于中国标准时间产生的北斗/全球卫星导航系统

（GNSS）、卫星双向和光纤时间频率比对链路的使用、管理与维护等相关要求。

——第6部分：发播。目的在于确立适用于技术机构发播中国标准时间信号的要求。

——第7部分：监测。目的在于确立适用于技术机构监测中国标准时间信号的要求。

Ⅳ

GB/T45434.3—2025

中国标准时间第3部分：公报

1范围

本文件规定了中国标准时间公报的一般要求、公报结构及数据项信息。

本文件适用于中国标准时间公报的编制与应用。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有修改单）适用于本

文件。

GB3100国际单位制及其应用

GB/T3101有关量、单位和符号的一般原则

GB/T3102.1空间和时间的量和单位

GB/T8170数值修约规则与极限数值的表示和判定

GB/T45434.1中国标准时间第1部分：通则

GB/T39267北斗卫星导航术语

JJF1059.1测量不确定度评定与表示

JJF1180时间频率计量名词术语及定义

3术语、定义和缩略语

3.1术语和定义

GB/T39267、GB/T45434.1和JJF1180界定的术语和定义适用于本文件。

3.2缩略语

下列缩略语适用于本文件。

BDT：北斗时（BeiDouTime）

CAT：中国原子时（ChinaAtomicTime）

CST：中国标准时间（ChinaStandardTime）

UTC：协调世界时（CoordinatedUniversalTime）

4一般要求

CST公报应使用规范的术语和定义及真实可靠的数据信息，数据单位应采用我国法定计量单位，

量和单位的表示应符合GB3100、GB/T3101、GB/T3102.1的相关要求，数值表示应符合GB/T8170

的要求，不确定度评定应符合JJF1059.1的要求。

CST公报数据和内容应采取审查和复核的制度，保证公报的准确性和权威性。

CST公报发布周期一般为1个月。

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