1、BRITISH STANDARD BS EN 28601:1992 ISO8601:1988 Incorporating Corrigendum No. 1 and Amendment No.2 Data elements and interchange formats Information interchange Representation of dates and times The European Standard EN28601:1992 has the status of a BritishStandard UDC681.3.04:351.759.1BSEN28601:1992
2、 This BritishStandard, having been prepared under the directionof the Information Systems Technology StandardsPolicy Committee, waspublished under the authorityof the Board of BSI andcomes into effect on 30June1989 BSI01-2000 The following BSI references relate to the work on this standard: Committe
3、e reference IST/14 Draft for comment86/64772 DC ISBN 0 580 17278 3 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Information Systems Technology Standards Policy Committee (IST/-) to Technical Committee IST/14, upon which the following bo
4、dies were represented: Article Number Association (UK) Ltd. Association for Payment Clearing Services Automobile Association British Computer Society British Telecommunications plc Business Equipment and Information Technology Association Department of Health and Social Security Department of Trade
5、and Industry Edifact (Board Special Projects Message Development Group) Electricity Supply Industry in England and Wales Electronic Engineering Association General Council of British Shipping HM Customs and Excise HM Treasury (Central Computer and Telecommunications Agency) Information Technology Us
6、ers Standards Association Library Association Office of Population Censuses and Surveys (OPCS) Society of Motor Manufacturers and Traders Limited The Simpler Trade Procedures Board User Standards Forum for Information Technology (Institute of Data Processing Management) Amendments issued since publi
7、cation Amd. No. Date of issue Comments 6816 Corr. September 1991 7825 June 1993 Indicated by a sideline in the marginBSEN28601:1992 BSI 01-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN28601 3 Publications referred to Inside back coverBSEN28
8、601:1992 ii BSI 01-2000 National foreword This BritishStandard has been prepared under the direction of the Information Systems Technology Standards Policy Committee. It is identical with ISO8601:1988 “Data elements and interchange formats Information interchange Representation of dates and times”,
9、including Technical Corrigendum1. It supersedes BS4760:1971 and BS5249-1:1976, which are withdrawn. In1992 the European Committee for Standardization (CEN) accepted ISO8601:1988 and technical corrigendum1:1991 as European Standard EN28601:1992. As a consequence of implementing the European Standard
10、this BritishStandard is renumbered as BSEN28601 and any reference to BS7151 should be read as a reference to BSEN28601. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a BritishStandard without deviation. Some terminology and certa
11、in conventions are not identical with those used in BritishStandards; attention is drawn especially to the following. The comma has been used as a decimal marker. In BritishStandards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International S
12、tandard” appear, referring to this standard, they should be read as “BritishStandard”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of i
13、tself confer immunity from legal obligations. Cross-references International Standard Corresponding BritishStandard BS5775 Specification for quantities, units and symbols ISO31-0:1981 Part0:1982 General principles (Identical) ISO31-1:1978 Part1:1979 Space and time (Identical) ISO646:1983 BS4730:1985
14、 Specification for UK7-bit coded character set (Identical, exercising national options) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theENtitlepage, pages2 to18, an inside back cover and a back cover. This standard has been updated (see copyright date)
15、 and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN28601 November1992 UDC681.3.04:351.759.1 Descriptors: Information interchange, data representation, calendar dates, year, days of the
16、 month, hours: time English version Data elements and interchange formats Information interchange Representation of dates and times (ISO8601,1st edition1988 and technical corrigendum1:1991) Elments de donnes et formats dchange Echange dinformation Reprsentation de la date et de lheure (ISO8601,1re d
17、ition1988 et corrigendum technique1:1991) Datenelements und Austauschformate Informationsaustausch Darstellung von Datum und Uhrzeit (ISO8601,1. Ausgabe1988, und Technical Corrigendum1:1991) This European Standard was approved by CEN on1992-10-30. CEN members are bound to comply with the CEN/CENELEC
18、 Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN
19、member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN mem
20、bers are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisc
21、hes Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1992 Copyright reserved to CEN members Ref.No.EN28601:1992EEN28601:1992 BSI 01-2000 2 Foreword The Technical Board has decided to submit the International Standard ISO8601:1988 “Data elements and interchange formats Info
22、rmation interchange Representation of dates and times” (ISO8601,1st edition,1988, and its technical corrigendum1:1991) for formal vote. The result of the formal vote was positive. This European standard shall be given the status of a national standard, either by publication of an identical text or b
23、y endorsement, at the latest by May1993, and conflicting national standards shall be withdrawn at the latest by May1993. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany
24、, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 0 Introduction 3 1 Scope and field of application 3 2 References 3 3 Terms and definitions 4 4 Fundamental principles 5 5 Representations 5 Annex A Re
25、lationship to ISO2014, ISO2015, ISO2711, ISO3307 and ISO4031 13 Annex B Examples of representation of dates, timeof the day, combinations of date and time, andperiods of time 14EN28601:1992 BSI 01-2000 3 0 Introduction 0.1 Although ISO Recommendations and Standards in this field have been available
26、since1971, different forms of numeric representation of dates and times have been in common use in different countries. Where such representations are interchanged across national boundaries misinterpretation of the significance of the numerals can occur, resulting in confusion and other consequenti
27、al errors or losses. The purpose of this International Standard is to eliminate the risk of misinterpretation and to avoid the confusion and its consequences. 0.2 This International Standard includes specifications for the numeric representation of information regarding date and time of the day. 0.3
28、 In order to achieve similar formats for the representations of calendar dates, ordinal dates, dates identified by week number, periods of time, combined date and time of the day, and differences between local time and Coordinated Universal Time, and to avoid ambiguities between these representation
29、s, it has been necessary to use, apart from numeric characters, either single alphabetic characters or one or more other graphic characters or a combination of alphabetic and other characters in some of the representations. 0.4 The above action has had the benefit of enhancing the versatility and ge
30、neral applicability of previous International Standards in this field, and provides for the unique representation of any date or time expression or combination of these. Each representation can be easily recognized, which is beneficial when human interpretation is required. 0.5 This International St
31、andard retains the most commonly used expressions for date and time of the day and their representations from the earlier International Standards and provides unique representations for some new expressions used in practice. Its application in information interchange, especially between data process
32、ing systems and associated equipment will eliminate errors arising from misinterpretation and the costs these generate. The promotion of this International Standard will not only facilitate interchange across international boundaries, but will also improve the portability of software, and will ease
33、problems of communication within an organization, as well as between organizations. 0.6 Several of the alphabetic and graphic characters used in the text of this International Standard are common both to the representations specified and to normal typographical presentation. 0.7 To avoid confusion b
34、etween the representations and the actual text, its punctuation marks and associated graphic characters, all the representations are contained in brackets . The brackets are not part of the representation, and should be omitted when implementing the representations. All matter outside the brackets i
35、s normal text, and not part of the representation. In the associated examples, the brackets and typographical markings are omitted. 1 Scope and field of application This International Standard specifies the representation of dates in the Gregorian calendar and times and representations of periods of
36、 time. It includes a) calendar dates expressed in terms of year, month and day of month; b) ordinal dates expressed in terms of year and day of year; c) dates identified by means of year, week numbers and day numbers; d) time of the day based upon the24-hour timekeeping system; e) differences betwee
37、n local time and Coordinated Universal Time (UTC); f) combination of date and time; g) periods of time, with or without either a start or end date or both. This International Standard is applicable whenever dates and times are included in information interchange. This International Standard does not
38、 cover dates and times where words are used in the representation. This International Standard does not assign any particular meaning or interpretation to any data element that uses representations in accordance with this International Standard. Such meaning will be determined by the context of the
39、application. 2 References ISO31-0:1981, General principles concerning quantities, units and symbols. ISO31-1:1978, Quantities and units of space and time. ISO646:1983, Information processing ISO7-bit coded character set for information interchange. EN28601:1992 4 BSI 01-2000 3 Terms and definitions
40、For the purposes of this International Standard, the following terms and definitions apply. 3.1 complete representation the representation that includes all the date and time elements associated with the expression 3.2 Coordinated Universal Time (UTC) the-time scale maintained by the Bureau Internat
41、ional de IHeure (International Time Bureau) that forms the basis of a coordinated dissemination of standard frequencies and time signals NOTE 1The source of this definition is Recommendation460-2 of the Consultative Committee on International Radio (CCIR). CCIR has also defined the acronym for Coord
42、inated Universal Time as UTC (see also5.3.3). NOTE 2UTC is often (incorrectly) referred to as Greenwich Mean Time and appropriate time signals are regularly broadcast. 3.3 date, calendar a particular day of a calendar year, identified by its ordinal number within a calendar month within that year 3.
43、4 date, ordinal a particular day of a calendar year identified by its ordinal number within the year 3.5 day a period of time of24hours starting at0000 and ending at2400 (which is equal to the beginning of0000 the next day) 3.6 format, basic the format of a representation comprising the minimum numb
44、er of components necessary for the precision required 3.7 format, extended an extension of the basic format that includes additional separators 3.8 Gregorian calendar a calendar in general use introduced in1582 to correct an error in the Julian calendar. In the Gregorian calendar common years have36
45、5days and leap years366days divided into12 sequential months 3.9 hour a period of time of60minutes 3.10 local time the clock time in public use locally 3.11 minute a period of time of60seconds 3.12 month, calendar a period of time resulting from the division of a calendar year in twelve sequential p
46、eriods of time, each with a specific name and containing a specified number of days. In the Gregorian calendar, the months of the calendar year, listed in their order of occurrence, are named and contain the number of days as follows: January(31), February(28 in common years;29 in leap years), March
47、(31), April(30), May(31), June(30), July(31), August(31), September(30), October(31), November(30), December(31) NOTEIn certain applications a month is regarded as a period of30days. 3.13 period a duration of time, specified a) as a defined length of time (e.g.hours, days, months, years); b) by its
48、beginning and end points. 3.14 second a basic unit of measurement of time in the International System of Units (SI) as defined in ISO31-1 3.15 truncated representation the abbreviation of a complete representation by omission of higher order components starting from the extreme left-hand side of the
49、 expression 3.16 week a period of time of seven days 3.17 week, calendar a seven day period within a calendar year, starting on a Monday and identified by its ordinal number within the year; the first calendar week of the year is the one that includes the first Thursday of that year. In the Gregorian calendar, this is equivalent to the week which includes4JanuaryEN28601:1992 BSI 01-2000 5 3.18 year a period of time of twelve consecutive months, considered to equal a calendar year 3.19 year, calendar a cyclic period of time in a calend
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