>>    "please run this job whenever daylight savings starts or ends"
>>
>> in a crontab. IMHO cron is the right tool for this, already knows the local
>> timezone and it should be easy to implement. Thoughts? Suggestions for the
>> syntax?
>
>@summer(time?)
>@winter(time?)

@timeshift?  as in "the second after local time experiences a
discontinuity".

>I wonder how one finds out when that time exactly is...

zdump can do it, so that's where someone needs to dig...  :)

-- 
|-----< "CODE WARRIOR" >-----|
codewarrior@daemon.org             * "ah!  i see you have the internet
twofsonet@graffiti.com (Andrew Brown)                that goes *ping*!"
werdna@squooshy.com       * "information is power -- share the wealth."