[R-sig-finance] Set time zone environment variable to "GMT"?

[Dirk Eddelbuettel]

Spencer Graves <spencer.graves <at> pdf.com> writes:

> 
> 	  How does one "set the time zone environment variable to 'GMT'" under 
> Windows XP?  The fCalendar documentation says repeatedly that this is 
> required, but Brian Ripley said it's impossible 
> (http://finzi.psych.upenn.edu/R/Rhelp02a/archive/47054.html).

One way is via 
   My Computer -> Properties -> Advanced -> Environment Variables
where you get to pick between User and System variables.

I tend to launch reasonable applications such as R from a bash shell in 
a Cygwin rxvt window.  In that case it works as it does on Unix/Linux:

~> echo 'print(Sys.getenv("TZ"))' | Rterm --slave
TZ 
"" 

~> export TZ="GMT"
~> echo 'print(Sys.getenv("TZ"))' | Rterm --slave
   TZ 
"GMT" 

Hth, Dirk