RE: Potentially misleading dates vs ISO 8601
- Dear TA:
I am glad to see you now say Last updated May 15, 2000 instead of 5/15/00.
But "Hits since 6/1/98" is not clear enough yet.
ISO 8601 does not deal or replace with language-dependent dates.
Anyway, if m/d/y order is preferred, the month should be written in word in
lieu of number, especially on Internet.
>From: "INFO" <transalt@...>________________________________________________________________________
>To: "Yifan Ji" <yfji@...>
>Subject: RE: Potentially misleading dates
>Date: Mon, 22 May 2000 13:32:39 -0400
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>Thanks for your input. We are aware that our date notations do not conform
>to international standards. However, the majority of our members are based
>in the New York Metropolitan Area, and are used to the American system of
>noting the date. As these are our members who are most likely to actually
>attend events listed on our calendar, we made a conscious decision to
>to the American notation, so as to avoid confusion. We know that this
>engenders confusion for our international website viewers, however, it was
>question of utility. Hopefully we will soon see the US formally switch to
>international notations sometime soon, so that we may follow suit.
>Again, thank you for your input.
>From: Yifan Ji [mailto:yfji@...]
>Sent: Friday, May 12, 2000 2:49 AM
>Subject: Potentially misleading dates
>I recently visited your website at http://www.transalt.org/ and noticed
>that you are using a confusing date notation.
>People from all over the world (don't forget foreign members) are able to
>visit your site and there are many date formats currently in use. These
>visitors might not obtain full value from the information you are providing
>if they are not sure of the date it represents.
>Did you know of the existence of an international date format defined
>by the International Standards Organisation as ISO 8601 "Data
>elements and interchange formats - Information interchange -
>Representation of dates and times".
>This defines the date in such a way to ensure there is no confusion as
>to which date is represented.
>For example, what date is 27/04/93? Most likely 27th April 1993.
>What date is 11/02/98? It could be 11th February 1998 or 2nd November
>When we move into the 21st century, it could become even more confusing.
>What about 09/12/18? It could be 9th December 1918 or 2018, or 12th
>September 1918 or 2018.
>What about 2011-07-12? Due to the four number prefix this is instantly
>recognisable as the ISO8601 format so it MUST be the 12th of July 2011.
>No other possibility therefore no possible confusion.
>The basic format is CCYY-MM-DD where CC is the century, YY is the year
>in that century, MM is the month in numeric format and DD is the day in
>numeric format. Note that this has the largest time unit on the left
>and decreases in unit size as you move to the right. If you see a four
>number prefix then it must be the century/year first and therefore an
>ISO8601 representation of the date.
>To take this further, adding the time in 24 hour format can give a
>representation of a point in time as a definition decreasing in unit
>size as you move left to right. For example, 1998-12-25 12:23:30
>For further examples and some more convincing arguments to use this
>format please see http://www.saqqara.demon.co.uk/datefmt.htm or join
>the ISO8601 community at http://www.onelist.com/community/ISO8601 where
>many people from around the world are trying to standardise on this date
>If you have any questions about the International Date Format, please
>email me at yfji@....
>Thank you for taking the time to read this.
>Mr. Yifan Ji
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