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Iso/Fdis 8601 FINAL INTERNATIONAL ISO/FDIS DRAFT STANDARD 8601 ISO/TC 154 Secretariat: DIN Data elements and interchange formats — Information interchange — Representation Voting begins on: 2000-10-05 of dates and times Voting terminates on: Éléments de données et formats d'échange — Échange d'information — 2000-12-05 Représentation de la date et de l'heure Please see the administrative notes on page iii RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFI- CATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. IN ADDITION TO THEIR EVALUATION AS Reference number BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO- ISO/FDIS 8601:2000(E) LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STAN- DARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS. © ISO 2000 ISO/FDIS 8601:2000(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Copyright notice This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying, recording or otherwise, without prior written permission being secured. Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel.+41227490111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. ii © ISO 2000 – All rights reserved ISO/FDIS 8601:2000(E) In accordance with the provisions of Council Resolution 15/1993, this document is circulated in the English language only. © ISO 2000 – All rights reserved iii ISO/FDIS 8601:2000(E) Contents Page Foreword......................................................................................................................................................................v Introduction ................................................................................................................................................................vi 1 Scope ..............................................................................................................................................................1 2 Normative references ....................................................................................................................................1 3 Terms and definitions....................................................................................................................................2 4 Fundamental principles.................................................................................................................................5 4.1 Basic concepts...............................................................................................................................................5 4.2 Common features, uniqueness and combinations ....................................................................................5 4.3 Time-units and reference systems...............................................................................................................6 4.3.1 Time-units.......................................................................................................................................................6 4.3.2 Date and time reference systems.................................................................................................................6 4.4 Characters used in the representations ......................................................................................................8 4.5 Use of separators...........................................................................................................................................9 4.6 Truncation ......................................................................................................................................................9 4.7 Expansion.......................................................................................................................................................9 4.8 Leading zeros.................................................................................................................................................9 4.9 Mutual agreement ..........................................................................................................................................9 5 Representations...........................................................................................................................................10 5.1 Explanations.................................................................................................................................................10 5.1.1 Characters used in place of digits or signs ..............................................................................................10 5.1.2 Characters used as designators ................................................................................................................10 5.2 Dates .............................................................................................................................................................11 5.2.1 Calendar date ...............................................................................................................................................11 5.2.2 Ordinal date ..................................................................................................................................................13 5.2.3 Week date .....................................................................................................................................................13 5.3 Time of the day.............................................................................................................................................15 5.3.1 Local time of the day ...................................................................................................................................15 5.3.2 Midnight ........................................................................................................................................................17 5.3.3 Coordinated Universal Time (UTC) ............................................................................................................17 5.3.4 Local time and Coordinated Universal Time.............................................................................................17 5.4 Combinations of date and time of the day ................................................................................................18 5.4.1 Complete representation.............................................................................................................................18 5.4.2 Representations other than complete .......................................................................................................19 5.5 Time-intervals...............................................................................................................................................20 5.5.1 Means of specifying time-intervals ............................................................................................................20 5.5.2 Separators and designators .......................................................................................................................20 5.5.3 Representation of duration.........................................................................................................................20 5.5.4 Complete representations...........................................................................................................................21 5.5.5 Representations other than complete .......................................................................................................23 5.6 Recurring time-intervals..............................................................................................................................23 5.6.1 Means of specifying recurring time-intervals ...........................................................................................23 5.6.2 Separators and designators .......................................................................................................................23 5.6.3 Complete representations...........................................................................................................................24
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