DALI 1.1 comments

Steve Allen sla at ucolick.org
Tue May 10 21:42:13 CEST 2016


On Tue 2016-05-10T19:11:09 +0000, Paul Harrison hath writ:
> > FITS forbids the use of Z, for good reasons.
>
> Then FITS should not even be mentioning ISO-8601 as not having the Z
> in ISO-8601 means that the date time string should be interpreted as a
> local time.

The FITS standard does not mention ISO 8601.

> I would suggest that to write any times in something like iso-8601
> format when you want to express a time in a particular timescale
> (other than UTC) is the act that should be banned, as it is highly
> likely that your intentions will be misinterpreted

This ship has sailed, and yes, this is one of the icebergs out there.
The standards bodies responsible for computer time representations
explicitly disregarded advice to be able to handle precise time,
so anyone trying to do that must diregard the standards.

--
Steve Allen                 <sla at ucolick.org>               WGS-84 (GPS)
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