Easy temporary GUI Timer?

Hi,

I regularly need timed actions. For example, I want to turn on the coffee machine in 30 minutes or raise the blinds at 4 PM. Currently, I always create a temporary automation for this. It would be practical if there were a solution where I could just enter the time on my phone, perhaps in a widget, and have everything else pre-configured.
Is there a convenient best practice for this?

Kind regards,

You can call scripts with variables for whatever input you want.

I have made an numerical input and now use this from a dashboard.