[tz] What are the interfaces to the TZDB?
Paul Eggert
eggert at cs.ucla.edu
Tue Nov 9 16:28:57 UTC 2021
On 11/9/21 02:23, Eliot Lear wrote:
> Which are we talking about? There are already the POSIX interfaces. Are
> we talking about the binary files? Is this something on which we are
> likely to gain consensus?
For binary files (the TZif files) we have Internet RFC 8536 and its
draft successor RFC 8536bis
<https://datatracker.ietf.org/doc/draft-murchison-rfc8536bis/>. Arthur,
Ken and I drafted this mostly tzdb's tzfile.5, and although the RFC has
been mentioned occasionally this mailing list has not focused on that
effort and hasn't helped its progress. (Occasionally people here have
suggested using up the spare space in the TZif header for some
extension, but none of these proposals have seemed to be worth the cost.)
The issues causing controversy on this list have been in areas not
covered by RFC 8536 (or RFC 6557, for that matter). If we wanted another
RFC to address these other issues, I suppose one way to do it would be
to draft one starting with material already in tzdb. It'd take some work
to draft any such RFC, though, and any drafters would need to be
thick-skinned.
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