Re: dst and IsDaylightSaving

On 2/13/07, Rich Armstrong <[email protected]> wrote:
> >> ... not the least of which is an IsDaylightSavingsTime
>
> If your TimeZone class derives from System.TimeZone, I hope you didn't really
> give the method that name. System.TimeZone's method is named
> IsDaylightSavingTime. :)
>
> Ah - I see the problem. Coming from a country with 1 time zone makes you
> a little blind to these types of issues, however I guess I do have
> software running across 4 different time zones now which is why it all
> runs based on UTC - have had the time zone and daylight savings issues
> before.
>
> If it's any help, I'll offer my TimeZone classes [1] - basically, it's a
> something I wrote a few years back to read all the time zones from the
> registry, and there's a couple of functions in there (not the least of
> which is an IsDaylightSavingsTime which takes a datetime and returns a
> bool). You can select any timezone from the collection it builds as
> well.
> Dino

I haven't looked at the code [yet], but do you cover those time zones
which are just plain wacky? (places which are 15' different than a
time zone it abuts?)

The last startup I worked for needed comprehensive time zone coverage
and I remember it was a *very* complex scenario (world-wide).

p

After my earlier explanation of Indiana's DST issues, I forgot to
mention my prank which I never put into play.

I was going to suggest Microsoft was fighting DST in Indiana because
they'd have to create & test patches for all of the Windows products
(at least in Indiana) in order to accommodate the various time zone
changes.  It's obviously flawed to technical people, but it would have
made for some interesting entertainment on a couple of fronts.

<snip>


<snip><snip><snip> of a dozen unnecessary trailers

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