Cron and Summer/winter time

[Chris Ruprecht]

Guys,

I'm sure there is a solution for this:
When I schedule a daily job to run at 1:30 AM and we switch from Winter to 
Summer time, the job doesn't run, because when the clock reaches 1 AM it's 
suddenly 2 AM and 1:30 AM never happens.

The same job would run twice, when we switch back because when it's 2 AM, it 
has already run 30 minutes before, but then it's suddenly 1 AM again and 
it'll run again in 30 minutes.

For simple clean-up jobs, this might be acceptable, but when running more 
complex jobs that need to run once and only once per day, this isn't going to 
work too well.

Any ideas?
Chris