[tz] Beginner's help request

Daniel Ford dfnojunk at gmail.com
Fri Nov 3 01:54:50 UTC 2017


Ah yes, I'd forgotten about the 'version' file; definitely the way to check
for updates.

Thanks for the clarification about the zone1970.tab contents.  So maybe I
can program the clock to make a once-only access to a TZdb mirror for that
file, at first start-up, to fetch the region/cities list for the owner to
choose from.  If something ever changed to make that choice invalid, there
could be a service routine in the firmware that allowed the user to re-do
this once-only download for a new region/city selection.  (Whew, things are
getting complicated! :-)

But the most exciting part of your e-mail was the mention of the IETF
working group!  I went there and found that they had concluded their work
and issued RFC7808.  I downloaded that and read it, and think that the
"expand" Action is just what I'm looking for!  So all I need to do is find
one or more TZDIST servers that look like they should be around for the

To my (simple) way of thinking, it would make sense if (some) NTP servers
added this TZDIST functionality, so they became a 'one-stop-shop' for
current time information, but whether they have/will is another matter.
I'll start looking.

Thanks again for the tip-off.


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