GB/T 47681.2-2026Date and time - Code for calendar systems - Part 2: Chinese historical calendar (English PDF)

Foreword

GB/T 47681.2-2026 | Date and time - Code for calendar system - Part 2: Chinese historical calendar

GB/T 47681.2-2026 English version. Date and time - Code for calendar system - Part

2.Chinese historical calendar National Standards of the People's Republic of China ICS 35.040CCS A

24 Date and Time Calendar System Code Part

2.Chinese Historical Calendar State Administration for Market Regulation The State Administration for Standardization issued a statement.

1.Scope This document specifies the general requirements and coding methods for Chinese historical calendars within the calendar system, and provides a list of the years of accession to the throne for princes. Code structure and code table for year, reign title year, Republic of China year, and sexagenary cycle year. This document applies to the coding and application of calendars related to Chinese history within the calendar system; it does not include the dates of ethnic minorities and religious days in my country. Calendars, such as the Tibetan calendar and the Buddhist calendar.

4 General Requirements

4.1 The dating methods that have been used and appeared in Chinese history can be mainly divided into four categories. --Years of accession to the throne by princes; --Era name system; --Republic of China calendar; --The sexagenary cycle for dating years.

Note. Calendar status is divided into two categories. historical calendar and current calendar. The sexagenary cycle (stem-branch calendar) has been used in Chinese history and is still in use today. Given that it was formed and perfected in [year missing], [the following text is incomplete and likely refers to a later period]. Since it was the primary official method of dating in Chinese history for a long period, it is included in the Chinese historical calendar.

4.2 Historical periods corresponding to each type of dating method. --The chronology of the years of accession to the throne. corresponding to the period from the Yellow Emperor during the Five Emperors period to Emperor Jing of the Western Han Dynasty; --Reign title system. corresponding to the Jianyuan era of the Western Han Dynasty to the Xuantong era of the Qing Dynasty; --The Republican era calendar corresponds to January 1, 1912 to September 30, 1949 in the Gregorian calendar; --The sexagenary cycle. corresponds to the period from the first year of the Taichu era of the Western Han Dynasty to the present.

4.3 Each type of dating method shall have a corresponding coding method, which shall comply with the provisions of Chapter 4 of GB/T 47681.1-2026.

4.4 All items in the code representation of each type of year shall comply with the provisions of Chapter 5 of GB/T 47681.1-2026.

4.5 Separators in the code should be included in the total code length.

4.6 Numbers mentioned in the code should be Arabic numerals, and letters should be English letters.

5 Encoding Method

5.1 Encoding Rules The calendar system code encoding rules for Chinese historical calendars should comply with the provisions of section

4.1 of GB/T 47681.1-2026, based on the calendar status. It consists of a code, a separator "-", and a calendar type code. The calendar type code should consist of, in sequence, the country and region code, the separator ".", the year classification code, the separator ".", and the sequence number. Code composition.

5.2 Code Structure The code structure of the Chinese historical calendar system is shown in Figure 1.

5.3 Calendar Status Codes The calendar status code for the Chinese historical calendar should use a single letter "h".

6 The year of accession of princes and dukes

6.1 The year code for the accession of a prince to the throne uses a 19-digit code, consisting of a calendar status code, a country/region code, a year-counting method classification code, and a reign code. The code consists of code, royal code, year ordinal number, separator "" and separator ".", as shown in Figure 2.

6.2 The chronological code table for the year of accession of princes should conform to the provisions of Appendix B.

6.3 Basic information on the year of accession of the princes is shown in Table 1. 7-year reign mark

7.1 The reign title code uses a 17-digit code, consisting of a calendar status code, country and region code, reign title classification code, dynasty code, and so on. The code consists of the year code, the year ordinal number, the separator "", and the separator ".", as shown in Figure 3.

7.2 The year code table shall comply with the provisions of Appendix C.

7.3 Basic information on the reign title system is shown in Table 2.

8 The Republican Era

8.1 The Republic of China's dating code uses a 9-digit code, consisting of a calendar status code, country and region code, dating method classification code, year ordinal number, and year number. It consists of the separator "" and the delimiter ".", and the code structure is shown in Figure 4.

8.2 The Republic of China calendar code table shall comply with the provisions of Appendix E.

8.3 Basic information on the chronology of the Republic of China is shown in Table 3.

9 Sexagenary Cycle Years

9.1 The sexagenary cycle year code uses a 12-digit code, consisting of a calendar status code, country and region code, year classification code, sexagenary cycle code, and... The code consists of a loop ordinal, a separator "", and a separator ".", as shown in Figure 5.

9.2 The order of the names of the sixty sexagenary cycles in the sexagenary cycle should conform to the provisions of GB/T 33661.

9.3 The cyclic ordinal number is used to indicate the ordinal number of the Jiazi year, and is set as follows: --After the Common Era. A cycle is set from 4 AD (Jiazi year) to 63 AD (Guihai year), with the cycle number starting from "50". If the sequence is repeated, the year 64 AD will appear again, and the cycle number will be "51". --BC. A cycle is defined as 57 BC (Year of the Rat) to 3 AD (Year of the Pig), with the cycle number starting from "49". The cycle begins in reverse order, and the year Jiazi reappears, which is the cycle number of 117 BC, "48".

9.4 The sexagenary cycle year code table shall comply with the provisions of Appendix D.

9.5 Basic information on the sexagenary cycle is shown in Table 4.