TZ environment variable

[Gwillim Law]

There is one reason to use mixed-case "ChST":  it's official.  People
actually do use it in the real world.

Of course, the tz database is free to adopt its own standards, but I don't
see a compelling reason to require time zone abbreviations to be all
upper-case.

--   Gwillim Law

----- Original Message ----- 

> [...] (I'll put in a vote for changing the mixed-case "ChST" to a
mono-case
> "CHST".)