system time

system time

Hi all,
i trying to do something like this:
in the runtime i want the user to insert a start time and an end time in two time format internal variables - ok
then i want to compare that interval with the "system time" to trigger a bit.
I'm doing this already with the scheduler, but i would like to make it more simple to the user, just to input boxs with start and end time, without choosing variable and so on.
What would you suggest? How can i have an internal variable with the system time so that i could compare it? Can i compare it with math driver? or rema?
Thnx!
Regards,

This is a migrated post! Originally posted on 18.08.2008 by user flajoso. Please be aware that information can be outdated.