[defrost]

Why does it need to run at that time?

* If it's being run to scrap data from a source that's available at some time, adjust the job if the source changes its time.

* If it's being run "when its dark and no one is around" then it'll run at some part of the dark bit regardless of DST changes.

[Retric]

Sometimes you minimize downtime by running something while some other system you don’t control is down.

[edoceo]

Billing and regulatory compliance

[defrost]

In that specific case, handle the job time by making it compliant.

The reason I posed a leading rhetorical question was that not all cron jobs are equal and how each is handled depends on the nature of each.