From: "Antti Kurenniemi" 

"Geo."  wrote in message news:45ebfd5d{at}w3.nls.net...
>> Calculations are usually done behind the scenes in seconds or
>> milliseconds from a fixed epoch (to increase date by one, add XXX seconds
>> to the current time). The problem comes when you ask the system what date
>> is second 120973240348 - with a bit of bad luck that number falls in the
>> place where the new DST rules differ from the old, and you get an
>> incorrect result.
>
> Does UTC change with DST? If not then it's just things that are set to go
> on local time that will be affected. For example backup software that is
> set to do a backup at 10pm will be off by one hour for 3 weeks unless you
> change your timezone.
>
> I don't see how that will break anything though.

It will "break" if you calculate time = money type of stuff.


Antti Kurenniemi
(billable hours and the likes)

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