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Re: [ISO8601] ISO 8601:2004

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  • NGUYEN Ivy
    Oh I m glad of this change. :-) It gets rid of even a YY-MM-DD date completely, allowing there to be no ambiguity of the date in question. I always thought the
    Message 1 of 9 , Sep 30, 2005
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      Oh I'm glad of this change. :-) It gets rid of even a YY-MM-DD date
      completely, allowing there to be no ambiguity of the date in question.
      I always thought the rules for truncation were confusing. The only
      reduced precision that I can see as 'ambiguous' is the YYYY-MM one,
      because to many people, it's often wrongly used in ranges of numbers
      (and years), like 'pp. 356-9' to mean pages 356, 367, 358, and 359; or
      'pages 300-80' to mean pages 300 to 380. I often still see year ranges
      in essays & the like shown as '1985-90' and '2001-05'. Very ambiguous
      to me. I sometimes even see 1998-02 to mean 1998 to 2002 (which has
      always been incorrect)!

      Out of curiosity, why is the solidus (/) preferred as the date
      component separator/demarcator (sp?) instead of just the double hyphen
      (--) (which is allowed, but only in situations when the solidus can't
      be used), tilde (~), or even endash (–)?

      On 29/09/05, Peter Haas <mailinglists@...> wrote:
      > Hi NGUYEN,
      >
      > on 2005-09-29T19:38:18+02:00 you wrote:
      > > So the only allowed formats are full date & time, like
      > > 2000-01-01T00:00:00Z, 2000-001T00:00:00Z, and 1999-W52-6T00:00:00 (?)?
      >
      > You can use formats with reduced precision as well, e.g.:
      >
      > 20 (means the years 2000 to 2099),
      > 2000 (means the year 2000)
      > 2000-01
      > 2000-W01
      >
      > T00
      > T00:00
      >
      > 2000-01-01T00:00
      >
      >
      > Not longer valid are e.g.:
      >
      > -00 (means year 2000)
      > -00-01-01
      > --01-01 (means first january of the year)
      > ---01 (means first day of the months)
      >
      > -001 (means first day of the year)
      >
      > 00W01 (means the first week of the year)
      > -W-1 (means monday)
      >
      > T-00:00 (means 0 minutes and 0 seconds of the hour)
      >
      > wkr Peter.
    • piebaldconsult
      ... I d still be backward-compliant though.
      Message 2 of 9 , Oct 6, 2005
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        > Truncations are not longer part of ISO 8601
        > (sections 5.2.1.3, 5.2.2.2, 5.2.3.3, 5.3.1.4 in ISO 8601:2000).

        I'd still be backward-compliant though.
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