bugGNU Core Utilities - Bugs: bug #23767, ISO-8601 and "date"


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bug #23767: ISO-8601 and "date"

Submitted by:  None
Submitted on:  Fri 04 Jul 2008 10:11:38 PM UTC  
Votes:  253  
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: None
Privacy: PublicAssigned to: None
Open/Closed: Open

Fri 04 Jul 2008 10:11:38 PM UTC, original submission:

Sorry if I'm being dense, this seems to be an issue that comes up with some regularity.

The ISO 8601 format for date/time specifications is well-known; in particular, it is described reasonably fully on wikipedia at http://en.wikipedia.org/wiki/ISO_8601. RFC 2822 and RFC 3339, by contrast, do not even have Wikipedia articles, not even stubs.

It is also, I admit, the only reasonably compact format for specifying a time/date format that I know of. "20080704T215923Z" is still somewhat human-readable, unlikely to be mistaken for a local time because the "T" and "Z" are exotic enough to stop people just making assumptions about how to interpret the string, the format allows alphabetic sorting ...

In short, I don't see what's wrong with it and I'm interminably confused by the fact that it's not date's default format. But it isn't even supported as an input format for -d! There is an --iso-8601 option, but it's undocumented!

What's up with this? Is it some sort of politically motivated campaign? If there actually were any harm in understanding, at least, the week-number-free "T"-separated date/time string with a "Z" suffix, shouldn't that at least be documented somewhere?



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