[h-e-w] Re: format-time-string (was Emacs 22.2.92 pretest)

[Jason Rumney]

> In Japanese environment, this should return "JST".
>   

On Windows, that has never been the case unless you explicitly set the 
TZ environment variable to JST.

> Some mailreaders on Emacs use this function to produce the Date:
> field.

Those mailreaders already have a bug if they do that. RFC 822 only 
allowed a small subset of timezone abbreviations (US timezones and GMT, 
plus single character Milatary designations that I've never seen in real 
use), and its successor RFC 2822 makes even these obsolete, requiring 
numeric timezone specifiers in all cases.