Fwd: RE: Feedback - ISO8601 - Suggestions to eGroups
- Tired of having to encounter mm/dd/yyyy in eGroups? I have just sent a
suggestion to eGroups opposing continued use of all-numerical mm/dd/yyyy in
versions of the USA, Canada (English), and even China, Hong Kong, and Taiwan
where Chinese is spoken (!). I have just received a reply. I hereby cite my
suggestion and its reply. My suggestion is mostly the same as the letter in
the group folder of files, plus my own words.
A Chinese-American member opposing mm/dd/yyyy
>From: eGroups Feedback <egroups-feedback@...>_________________________________________________________________________
>Reply-To: eGroups Feedback <egroups-feedback@...>
>To: Justin JIH <jusjih@...>
>Subject: RE: Feedback - ISO8601 - Suggestions
>Date: Wed, 15 Nov 2000 02:37:54 -0800
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>Original Message Follows:
>Group Name: ISO8601
>Type your feedback here:
> I use your service and notice that you
>are using a potentially confusing date
>notation in versions of not only the
>USA, but also Canada (English), China,
>Hong Kong, and Taiwan,
>People from all over the world 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
>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.
>I do not understand exactly why impose
>am/pm throughout the world even where
>not used? That does not make good sense.
>For further examples and some more
>convincing arguments to use this
>format please see
>tm and the ISO8601 community at
>where many people from around the world
>are trying to standardise on this date
>Even if local practice is more
>important, in month/day/year format
>used in the USA & Canada, words of
>months should be used, i.e., Sun, Nov
>12, 2000 rather than Sun 11/12/2000.
>The month/day/year format is NOT used
>in China, Hong Kong, and Taiwan.
>Chinese use yyyy-mm-dd, which is the
>same as ISO 8601 :-), followed by the
>day of the week, i.e., 2000-11-12 (day
>of the week) rather than the day of the
>week followed by 11/12/2000.
>As eGroups in the United Kingdom,
>Australia, India, Singapore, France,
>Canada (French), Spain, Mexico use
>local words in months without ambiguity
>in dates, eGroups users in the USA,
>Canada (English), China, Hong Kong, and
>Taiwan should no longer be exposed to
>all numerical mm/dd/yyyy, which is
>potentially confusing. Being exposed to
>all numerical mm/dd/yyyy, especially in
>Chinese area, is not fair.
>If you have any questions about the
>International Date Format, please
>email me at jusjih@....
>Thank you for taking the time to read
>A Chinese-American eGroups user
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>Date Originated: Tuesday November 14, 2000 - 21:24:36
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- $ >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.
Why do people still use "century" for the first two Y's
in "YYYY-MM-DD"? For example, 1960 is in the 20th century,
not the 19th. The only "20**" year in the 20th century
is the year "2000", which is also in the SECOND MILLENNIUM,
not the THIRD.
Archie Medrano amedrano@... http://euclid.ucsd.edu/~amedrano/
"I made mistakes when I played with your mind..." -- Lawrence/Abdul
- --- In ISO8601@egroups.com, Archie Medrano <amedrano@e...> wrote:
> $ >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.
> Why do people still use "century" for the first two Y'sThe term "century" is used in ISO 8601 22.214.171.124. I recognise there may
> in "YYYY-MM-DD"? For example, 1960 is in the 20th century,
> not the 19th. The only "20**" year in the 20th century
> is the year "2000", which is also in the SECOND MILLENNIUM,
> not the THIRD.
be still a few flaws therein, like the term "century". Other flaws
include but are not necessarily limited to:
(1) Use of a letter "T" between a date and a time looks odd, though
ISO 8601 does allow its omission under a note of 5.4.1)
(2) Use of a solidus (/) to indicate a period of time may tend to
mislead, though a double hyphen is allowed under a note of 5.5.2.
Outside ISO 8601, a "~" may be seen in some cases. I prefer "~".