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Vexen Crabtree 2015


Vexen Crabtree's Live Journal

Sociology, Theology, Anti-Religion and Exploration: Forcing Humanity Forwards

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International Date Format (ISO-8601)

International Date Format (ISO-8601): The YYYYMMDD date format is the internationally agreed concise format for unambiguous dates and is to be adopted by everyone. It is logical, with the biggest denominators being listed first (same as numbers, times, weights, etc), making it easily sortable and utterly clear. The International Organization for Standardization specification for the International Date Format is the ISO-8601 format, adopted so far by the United Nations, commerce groups, scientific communities and most Western governments. "20050229" is an example of an ISO-8601 compliant date print - equal to 2005 Feb 29.

I have been using the YYYY MMM DD format since late 1999 when the Millennium Bug started to hit the news (Click any of the text to open the page in a new window).

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Now, how do you find out what the ISO standard is for a particular thing? I'd be quite interested to know what the ISO for sizes and shapes of the numerous screwdriver heads are. Philips, torx, star, hex, flat... there's tonnes of the bastards!

I searched around until I found it; try searching the ISO's website too!

Hello! Can you please clarify the tool you'we searched with?

I prefer YYYY-MM-DD myself (e.g. 2005-08-17) as numbers are universal whereas letters are language-dependent. There might still be some confused Americans, but anyone with half a brain will guess that the second number is the month from the fact that the year is clearly the first number.

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If there's anything I enjoy it's my own practices being independently validated by the status quo *rolls eyes*

I've been doing this for years, it's just logical.

My only variation is I use all numbers and the 24 hour clock

Presently I'm torn between using all colans, or all periods:
Colans are more logical, but the periods are more pleasing to me on a purely aesthetic level



I think I lean more to artistic than logical

YYYY MMM DD is not ISO-8601

ISO-8601 specifies only a numeric representation. Your use of an abbreviated English month name is not compliant.

Pete Forman

Re: YYYY MMM DD is not ISO-8601

Yeah this is correct, "Jan", "Feb", "Mar" etc are language-specific and not good protocol, but I like to think that while people are getting used to ISO 8601 it makes it doubly clear what the format is.

Re: YYYY MMM DD is not ISO-8601

But it's not what the format is, and people would probably end up permanently adopting the botched, non-sortable, English-specific one if it was taught that way.

Re: YYYY MMM DD is not ISO-8601


ISO 8601 is specifically for numeric dates, and it is wrong to imply otherwise.

YYYYMMMDD does NOT sort properly, except in languages in which month abbreviations are in "alphabetical" order. "01/03/04", if YY/MM/DD, will sort correctly.

AD does NOT mean "Ad domini".


Ou est Satan exactement? Devrivez si-il vous plait.

Probably the same place as toothfairies and elves.

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