Make climate control follow predefined steps based on start time?

Anyone have any clever ideas as to how to make a climate control follow predefined steps that are located in something like a txt or excel file???

The only thing that needs to happen though is that it must be able to survive reboots and the start time is based off a “button push” using something like this.

timestamp: "{{ now().timestamp() }}" 

just looking for ideas to extrapolate with.