[whatwg] [wf2] Leap seconds, dates in the past

Henri Sivonen hsivonen at iki.fi
Wed Aug 16 04:56:24 PDT 2006

On Aug 16, 2006, at 06:33, mozer wrote:

> A lot of work as already been done by the W3C XSL WG on calendar  
> (and even negative year in needed)
> http://www.w3.org/TR/xslt20/#lang-cal-country

The first sentence reads:
"The set of languages, calendars, and countries that are supported in  
the date formatting functions is implementation-defined."

"Implementation-defined" is a fancy way of saying "the committee  
couldn't agree on a realistic interoperable solution".

Good luck researching country-specific Julian/Gregorian roll-over  
dates and new year rules. The current country codes don't cover for  
example Venice adopting the modern new year rule at a different time  
than Rome.

And good luck supporting calendars that even ICU doesn't know about.

Non-Gregorian calendars are a huge can of worms. Let's put the lid  
back on right away.

Henri Sivonen
hsivonen at iki.fi

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