Looking for idea's on how to to solve my "problem"

[stefanuytterhoeven]

I don't have a real problem. I'm just curious what are your ideas to solve next "problem"
What I want:
I want to call a service.
When?
well, during a PERIOD (from-to date), for example every TUEsday (in that period), at a certain time.
I'm creating a "vacation script".
So, i want during my vacation (this is the PERIOD), every MON,TUE,WED,THU,FRI (in the weekend something else), turn on a light at a certain time (or turn it of)
So, I'm creating an "app", with the configuration, and trigger closures.
Now, I'm in my script a the moment that I have "PERIOD FROM", "PERIOD TO", Dayname, service(service name+attr),entityid, startTime
calling the service is no problem. It's the combination of PERIOD,DayOfWeek,starttime that i'm looking into, and I want to find
the best way to accomplisch this.
I already found "CRON" , RANGE,....
Any idea? thx!