This category is for sites with information and comments about International Standard ISO 8601, the Date and Time Standard now officially adopted in nearly every country of the world. This standard defines various formats based on Year-Month-Day for Dates, and Hours:Minutes:Seconds for Time, as well as covering the numbering of Days within the Year, Months and Weeks within the Year, and Days within the Week. This standard was a core requirement for Year 2000 Fixes, and is highly recommended for all new computer protocols, databases, and much other work. There are hundreds of sites with useful information. This category will feature many of the best of these. There is also a mailing list where users can find advice from other users. This is on YahooGroups, and listed within this category. Click the ISO 8601 link above to access this reference section and the further links to various other ISO 8601 information sites.
Top / Science / Reference / Standards / Individual Standards / ISO / ISO 8601

ISO 8601

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  • Reference / Time
  • Astronomy / Calendars and Timekeeping

    • Site

  • New Date
    A private site about the advantages of using ISO 8601-style dates.
  • W3C Date and Time Formats
    Defines a profile of ISO 8601 referenced by the W3C HTML recommendation.
  • International Standard Date and Time Notation
    by Markus Kuhn - An introduction to ISO 8601, the YYYY-MM-DD date and the 24-hour time notation, with notes on week numbers and on implementation.
  • Implementation of the ISO 8601 Standard
    A list of countries around the world that have adopted the ISO 8601 standard, also lists equivalent national standards numbers where applicable.
  • International Date Format Campaign
    Describes and lists many reasons why the ISO 8601 standard should be more widely adopted in Computing, on the Internet, and in everyday life - by Steve Adams in England.
  • Discussion About the ISO 8601 Standard
    About 200 people worldwide, who already use and promote the ISO 8601 Year-Month-Day date format have formed this discussion group. Go here for help and advice, or for general discussion. Message archive can be browsed. If you wish to join in, there are options to participate via the Web-based front-end, or subscribe via email.
  • Week Numbers In Excel
    How to calculate absolute week numbers, Excel week numbers and ISO week numbers (with Formula and VBA). Links to other ISO 8601 related materials.
  • Various Date and Time Format Miscellany
    by J R Stockton - Covers written date and time formats, ISO Standard 8601 (with links) and converting to and from Roman Numbers. Discusses reforming American format dates as well as JavaScript and non-text formats.
  • Using ISO 8601 Dates
    ISO 8601 Dates: What they are and why they're good - University of Illinois at Chicago in the USA.
  • The Best Of Dates, The Worst Of Dates
    Just because Y2K is over, doesn't mean programmers are done creating date bugs - covers many date and time issues, especially ISO 8601 - by Gilbert Healton.
  • Date and Time Notation - Macintosh Procedure for ISO 8601 Format
    Setting up your Mac to use the Year-Month-Day date format. Instructions are for MAC OS 7, but are easily adapted for later versions.
  • Date and Time Notation - Windows Procedure for ISO 8601 Format
    Setting up your PC to use the Year-Month-Day date format. Instructions are for Windows 95, but are easily adapted for later versions.
  • The Mathematics of the ISO 8601 Calendar
    A comprehensive document covering how week numbers are calculated using the ISO 8601 calendar system. Includes links to many further resources.
  • Information on ISO 8601, the date and time representation standard
    A short description of and motivation for ISO 8601, the date and time representation standard, with links to more detailed resources - by Jukka Korpela in Finland.
  • Schema Time Changes (Draft)
    Useful information about date and time - by M. Davis.
  • Dated Material - Is the Y2K Problem Really Over?
    Discussion about the use and misuse of various date formats - Intelligent Enterprise Magazine - Celko.
  • Delphi 32 - Components: Date & Time: Clocks - ISO Week Number (Program Code)
    Here's some code that generates the weeknumber for a given date in accordance with ISO standard 8601:1988 (European Standard EN 28601).
  • ISO Week Algorithm
    An algorithm for converting Gregorian Calendar Dates to the ISO 8601 Week Date format (Y2K Compliant).
  • Issues about Date and Time
    by Clive D.W. Feather.
  • ISO 8601 Date/Time Representations
    A simple introduction to ISO 8601 date and time formats - University of Wellington in New Zealand.
  • The ISO Week Date Calendar
    A calendar of weeks based on the ISO 8601 week notation - convert any date into week number and day number.
  • 54 Weeks in 2000 : Another Y2K Problem!
    A short discussion about week numbering, showing how the ISO 8601 standard had fixed a Y2K problem, long before it was noticed in other non-ISO week-numbering schemes.
  • ISO 8601: the Right Format for Dates
    A short description, and guide to usage, of the ISO 8601 format, with some links to further resources.
  • Standards to be obeyed by the masses: Representing temporal and monetary data on the web
    A well researched paper into the usage of various Date and Time, and Monetary, formats on the Internet which recommends the widespread adoption of ISO 3166, ISO 4217, and ISO 8601 - by Gerhard Knolmayer.
  • The Y2K Problem, UIC, and You
    Describes Year 2000 fixes for computer systems, mainly based on using the ISO 8601 standard for dates.
  • Date and Time: Week Numbers
    Windows date and time locale tables sorted both by country order and by definition order - by Peter J Haas in Germany.
  • Use ISO 8601 and Drop mm/dd/yy and am/pm
    Justin JIH, a Taiwanese American, sets out the reasons why adopting the YYYY-MM-DD date format is preferred. Includes useful links to further resources.
  • The Code Project: C# Programming
    Free source code and tutorial for a Gregorian Date To ISO Date Converter for Windows.
  • Use International Date Format
    How and why to use international date format in your document - from the W3C QA section.
  • The ISO Date Format
    Discussion of formats for expressing dates, with particular reference to the ISO 8601 date format - by Peter Meyer.
  • Calculating the ISO week number - by Jan Stout.
    WeekNumber Calculation Explanation.
  • W3C I18N Q&A: Date formats
    Discussion of date formats for internationalisation.
  • Date and Time on the Internet
    A proposal to use the ISO date format for Internet applications - by Chris Newman.
  • Changing Your Operating System's Default Date Format
    Changing your operating system's default date format to use four-digit years - University of California at Berkeley.
  • Standards for Representing Dates
    Useful overview and discussion on adopting ISO standards and four-digit year formats as part of Y2K readiness and future-proofing of software - University of California at Berkeley.
  • UN/ECE Trade Facilitation Recommendation 07
    The United Nations Economic Commission for Europe - Working Party on Facilitation of International Trade Procedures - Recommendation 07 - Numerical Representation of Dates, Time and Periods of Time.
  • ISO 8601
    A short introduction to the ISO 8601 format.
  • The Many Dates and Times of Perl
    A tour of the many date and time handling modules on the CPAN - by Dave Rolsky.
  • Problem F - Standard Dates (50 Points)
    A problem set for computer studies students involving programming using the ISO 8601 date format.
  • ISO 8601 Date and Time - Converting and Implementing
    How to implement the use of the Year-Month-Day Date format in various computer systems - includes some programming examples and the 'Date Format Poll' - by Nikolai Sandved in Norway.
  • Mac OS X 10.0: How to Set Date and Time to ISO 8601:1988 Standard
    Apple support document.
  • ISO 8601 compliant website button
    A button to place on an iso-8601 compliant website.
  • Javascript Code
    Parsing ISO 8601 Date/Times in JavaScript.
  • ISO note on the standard
    Brief description of the standard from the publishers themselves.
  • Date and Time on the Internet - Timestamps
    Document: draft-ietf-impp-datetime-05 - An updated proposal to use a limited subset of ISO-compliant date formats for date stamps on the Internet - by Chris Newman.
  • Project 2038 FAQ
    Description of computer problems with date/time calculations coming in year 2038.
  • Date and Time on the Internet: Timestamps
    RFC 3339 defines a date and time format for use in Internet protocols that is a profile of the ISO 8601 standard for representation of dates and times using the Gregorian calendar - by Graham Klyne and Chris Newman [FTP].

    • Web Search

  • ISO/FDIS 8601
    URL : xml.coverpages.org/ISO-FDIS-8601.pdf
    ISO/FDIS 8601:2000(E) PDF disclaimer. This PDF file may contain embedded ... International Standard ISO 8601 was prepared by Technical Committee ISO/TC 154, ...[2000/11/03]
  • ISO - FAQs - Date and time format
    URL : iso.org/iso/support/faqs/.../date_and_time_format.htm
    It is ISO 8601, Data elements and interchange formats – Information interchange ... the meta language used internally in ISO 8601 can be used. ... ISO 8601:2004 ...[2008/10/09]
  • ISO 8601:2004 - Data elements and interchange formats -- Information ...
    URL : iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?...
    ISO 8601:2004 is applicable whenever representation of dates in the Gregorian ... ISO 8601:2004 does not assign any particular meaning or interpretation to any ...[2008/12/02]
  • ISO 8601 - Wikipedia, the free encyclopedia
    URL : en.wikipedia.org/wiki/ISO_8601
    ISO 8601 is an international standard for date and time ... edition of the ISO 8601 standard was published in ... of the ISO 8601 Calendar ...[2008/11/27]
  • iso-8601 · Microformats Wiki
    URL : microformats.org/wiki/iso-8601
    The Mathematics of the ISO 8601 Calendar. Current date in week date and ordinal date format. ISO 8601 at the Open Directory Project ...[2008/11/17]
  • ISO 8601: the Right Format for Dates
    URL : www.uic.edu/depts/accc/software/isodates/index.html
    A short description, and guide to usage, of the ISO 8601 format, with some links to further resources. ... ISO Standard 8601 for Dates (and Times) Written ...[2008/07/08]
  • Use international date format (ISO) - Quality Web Tips
    URL : www.w3.org/QA/Tips/iso-date
    W3C QA - How and why to use international date format in ... ISO 8601:2000 International Date Format. Everything on Calendar systems. W3C Q&A : Date formats ...[2008/09/03]
  • ISO 8601- Year 2000 Date Field Compliance and Certification
    URL : www.state.ak.us/local/akpages/ADMIN/info/iso8601.htm
    Year 2000 Date Field Compliance and Certification, Year 2000 problems and solutions, ITG' information and certification regarding Year 2000 and the State Alaska[2008/10/20]
  • Download a Draft Copy of the ISO 8601 Date and Time Standard as a PDF File.
    URL : www.qsl.net/g1smd/isopdf.htm
    The Main ISO 8601 Info Pages are located at: <http://www.qsl. ... ftp://ftp.iks-jena.de/pub/mitarb/lutz/standards/iso/iso-iec-8601-1988-ReprDatesAndTimes.pdf ...[2002/04/30]
  • Using ISO 8601 Dates
    URL : www.uic.edu/depts/accc/software/isodates/isocontents.html
    ISO 8601 Dates: What they are and why they're good - University of Illinois at Chicago in the USA. ... ISO Standard 8601 for Dates (and Times) ... Written ...[2008/07/08]
    • Top / Science / Reference / Standards / Individual Standards / ISO / ISO 8601
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