Double summer time?

[Timothy Murphy]

Wolfgang S. Rupprecht wrote:

> This is why one really wants to run the pc in UTC.

I've never really understood this question asked during installation:
"Does your computer use UTC" (or something like that).
How does one determine the answer?

-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland