Automation with an intermittent schedule

[h0ckeysk8er (Bruce Pinsky)]

@squash22

Hello to all, I have a schedule I am trying to create for a Christmas village where a skating pond turns on at 4:30 pm, then runs for 15 minutes and then stays off for 45 minutes (to prevent motor burnout on this ancient toy), and then repeats. I created a routine with those specific minute delays to then end at 9:30 pm. I attached a screenshot for clarity. When I tested it and manually ran the routine, and let it run at the set time, it basically ignored all the delays and turned the device (toy) on and off repeatedly, and rapidly, in seconds.

Can anyone tell me why this happened?
And am I barking up the wrong tree with this type of routine to get what I want done?

Assuming you have a ST hub, you can create simulated loops using the 3rd party Edge driver found here. Create two timers, one to count the on duration and one to count the off during. Create a few Routines like this:

If 4:30pm
then
  Turn on pond
  Turn on On-Timer

If On-timer is => 15 mins
  Turn off pond
  Turn on Off-Timer
  Turn off On-Timer
  Reset On-Timer

If Off-Timer is => 45 mins
  Turn on pond
  Turn on On-Timer
  Turn off Off-Timer
  Reset Off-timer

If 9:30pm
  Turn off pond
  Turn off On-Timer
  Turn off Off-Timer
  Reset On-Timer
  Reset Off-Timer