Creating a script that use a database or array

[khalil]

The question is where the schedule data comes from and if it should be editable by the end user. If the schedule is fixed then you can simply create a table with date/time and use a scheduled script that runs every minute to check if date/time matches.

thanks, admin
its a fixed date/time table 

the date/time table represents the pray time for each day of the year.

I want to control the light and AC of the masjid (mosque) eg. turn on the light before azan time by x minutes if sunset.
I hope the description is clear now, what is your suggestion admin?
regards,