Re: BUG #1993: Adding/subtracting negative time intervals

On Wed, 26 Oct 2005 00:44:50 -0400, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> John R Pierce <pierce(at)hogranch(dot)com> writes:
> > the whole DST thing falls apart when you deal with places that don't
> > respect it... arizona (except the navajo nation), for instance....
>
> > it would be impossible to calculate the 'correct' answer without knowing
> > the exact location...
>
> No, rather say "without knowing the correct timezone". All of this is
> about doing the calculations properly according to the rules of the
> current TimeZone setting. It's irrelevant whether the calculations are
> correct with respect to some other timezone rules; obviously they won't
> be.

I think this is what I was getting at. In my timezone 'Australia/NSW',
we have daylight savings. Is that used any way when the calculation
happens or the result is displayed?

In the examples we've been using, does anything change if the -05 and
-04 are changed to timezones (EDT/PST/...)?

klint.

+---------------------------------------+-----------------+
: Klint Gore : "Non rhyming :
: EMail : kg(at)kgb(dot)une(dot)edu(dot)au : slang - the :
: Snail : A.B.R.I. : possibilities :
: Mail University of New England : are useless" :
: Armidale NSW 2351 Australia : L.J.J. :
: Fax : +61 2 6772 5376 : :
+---------------------------------------+-----------------+