ICS35.240

CCSL60

中華人民共和國國家標準

GB/T45434.3—2025

中國標準時間第3部分：公報

Chinastandardtime—Part3：Bulletin

2025?03?28發布2025?03?28實施

國家市場監督管理總局

國家標準化管理委員會發布

GB/T45434.3—2025

目次

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

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

1范圍·······················································································································1

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

3術語、定義和縮略語···································································································1

3.1術語和定義········································································································1

3.2縮略語··············································································································1

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

5公報結構·················································································································2

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

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

5.3附錄·················································································································2

6公報數據項信息········································································································2

6.1CST（k）時間偏差信息···························································································2

6.2守時鐘的相對權重信息·························································································3

6.3守時鐘的頻率偏差信息·························································································3

6.4守時鐘的頻率漂移率信息······················································································3

6.5CST時間偏差信息······························································································3

6.6BDT時間偏差信息······························································································4

附錄A（資料性）公報封面格式·······················································································5

附錄B（規范性）公報必選項表格樣式··············································································6

附錄C（資料性）公報可選項表格樣式··············································································7

Ⅰ

GB/T45434.3—2025

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規定

起草。

本文件是GB/T45434《中國標準時間》的第3部分。GB/T45434已經發布了以下部分：

——第1部分：通則；

——第2部分：元數據；

——第3部分：公報。

請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。

本文件由中央軍委裝備發展部提出。

本文件由全國北斗衛星導航標準化技術委員會（SAC/TC544）歸口。

本文件起草單位：中國計量科學研究院、中國衛星導航工程中心、北京衛星導航中心、北京無線電

計量測試研究所。

本文件主要起草人：張愛敏、方向、王玉琢、焦文海、史豐豐、張升康、徐清華、劉瑩、王學運、徐金鋒。

Ⅲ

GB/T45434.3—2025

引言

標準時間廣泛應用于通信、交通、金融以及科學研究和國防建設等諸多方面，影響著人類生產生活

的方方面面，在現代社會中發揮著不可替代的作用。GB/T45434旨在明確中國標準時間產生、管理與

服務的準則，擬由7個部分構成。

——第1部分：通則。目的在于確立適用于中國標準時間的產生、保持、比對、發布和授時服務的

基本要求。

——第2部分：元數據。目的在于確立適用于中國標準時間產生與發布涉及數據資源的內容和格

式，定義元數據實體及元數據屬性。

——第3部分：公報。目的在于確立適用于中國標準時間公報編制的方法和要求。

——第4部分：基準鐘。目的在于確立適用于中國標準時間產生的基準鐘的報數、使用和評估等

相關要求。

——第5部分：比對鏈路。目的在于確立適用于中國標準時間產生的北斗/全球衛星導航系統

（GNSS）、衛星雙向和光纖時間頻率比對鏈路的使用、管理與維護等相關要求。

——第6部分：發播。目的在于確立適用于技術機構發播中國標準時間信號的要求。

——第7部分：監測。目的在于確立適用于技術機構監測中國標準時間信號的要求。

Ⅳ

GB/T45434.3—2025

中國標準時間第3部分：公報

1范圍

本文件規定了中國標準時間公報的一般要求、公報結構及數據項信息。

本文件適用于中國標準時間公報的編制與應用。

2規范性引用文件

下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有修改單）適用于本

文件。

GB3100國際單位制及其應用

GB/T3101有關量、單位和符號的一般原則

GB/T3102.1空間和時間的量和單位

GB/T8170數值修約規則與極限數值的表示和判定

GB/T45434.1中國標準時間第1部分：通則

GB/T39267北斗衛星導航術語

JJF1059.1測量不確定度評定與表示

JJF1180時間頻率計量名詞術語及定義

3術語、定義和縮略語

3.1術語和定義

GB/T39267、GB/T45434.1和JJF1180界定的術語和定義適用于本文件。

3.2縮略語

下列縮略語適用于本文件。

BDT：北斗時（BeiDouTime）

CAT：中國原子時（ChinaAtomicTime）

CST：中國標準時間（ChinaStandardTime）

UTC：協調世界時（CoordinatedUniversalTime）

4一般要求

CST公報應使用規范的術語和定義及真實可靠的數據信息，數據單位應采用我國法定計量單位，

量和單位的表示應符合