larryd:
Do you understand how an RTC can be used in timing?
Have you reviewed the Timer library?
I actually have the RTC module with battery and I am using it to get the current time for the board.
I am using the Timer library too at other places. It simply sets a trigger for future x seconds. My challenge is that I don't know how many seconds between now and when I need to trigger. I have the current date and time but when I need to trigger I only have the time and days (3:00 PM Tuesday and Thursday). If I had 10/2/2017 3:00 PM I could do it easily.
I am familiar with Time library.