On 11 March 2016 at 07:26, Derick Rethans <tz@derickrethans.nl> wrote:

I think it would be nice if there was a top-level entry for that in
tzselect, but it should definitely not be linked to London, or
Greenwich, GMT, or anything like that.

I agree that this seems to be a bit of an oversight.

On 12 March 2016 at 20:25, Guy Harris <guy@alum.mit.edu> wrote:

Then it should be fixed to offer:
...
11) UTC - I want to specify the use of Coordinated Universal Time.
12) TZ - I want to specify the time zone using the Posix TZ format.

I think this is a reasonable approach.

I would point out that, per https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Decoding_table, country codes AA, Q[M-Z], X[A-Z], and ZZ are permitted for "user assignment". If we were to absolutely feel that Etc/UTC needed a place in zone{,1970}.tab, it would belong there, not in GB. But I don't think that's necessary.

--
Tim Parenti