Configurable time-based trigger for rule

to trigger a rule time-based, we usually use cron. but with cron i can’t make a configurable time.
i will set the time over a setpoint item.

it is possible to trigger a rule with a configurable time? is there any idea?

There are some possible approaches for that.

  • Either trigger the rule once per Minute (or whatever the granularity of your setpoint item is) and compare the actual time with the setpoint time
  • Or build a rule which is triggered when midnight or setpoint item changed, which will start a timer dependent on the setpoint item (If the timer is already started, the rule has to cancel the timer first)
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Thanks for the fast answer … i will try the first approache.