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DATETIME  January 2011

DATETIME January 2011

Subject:

Re: Expanded years

From:

"C. M. Sperberg-McQueen" <[log in to unmask]>

Reply-To:

Discussion of the Developing Date/Time Standards <[log in to unmask]>

Date:

Tue, 11 Jan 2011 11:28:38 -0700

Content-Type:

text/plain

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Parts/Attachments

text/plain (29 lines)

On Jan 11, 2011, at 9:11 AM, Ray Denenberg, Library of Congress wrote:

> I would also assume that we need only represent a year (and even then often only an approximation) and not month and day, or time.
> 
> Proposal:
> 
> 1. change the profile so that all years based on ISO 8601 syntax are four digits.
> 
> 2. Introduce the following syntax.  Note that we already use the character E to signal certain "extensions".  Use EY to signal that a year follows, and the syntax is
> 
>            EY[year]
> 
> where [year] may be (a) a plain (or signed) integer, e.g. 100001; or (b) an integer in scientific notation e.g. 17*10^9
> 
> Comments please.

I'm not sure on the actual use cases for this, but if you do want to
use scientific notation, I think you'll achieve better compatibility with
most existing IT usage (and most existing libraries for handling 
numbers) if you use the form "17E9" or "17e9" for it.

-- 
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com 
* http://cmsmcq.com/mib                 
* http://balisage.net
****************************************************************

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