Display automation trigger time on the toggle button

Hey,

Thought this should be easy, but I can’t wrap my head around it. Did some intensive search but couldn’t find any pointer. Would appreciate any help.

I have a button that toggles an automation. More specifically, it’s a simple automation that gets triggered by time (and turns on the water heater).

Trying to show the automation trigger time on the button, so it would say “On 06:00”.

How do I do that?

Thanks
Moti