Home automation (HomeKit): trigger something with the alarm possible?

Hi, I am trying to set up some stuff with HomeKit. I can start scenes/actions at a given time or at sunrise. I could set the lights to turn on at a given time every week-day. But I wake up at different times, depending on where my work day starts. External meeting? HQ? Office?
That means, that my alarm clock is sometimes set at 6:00, at 6:30 or earlier if I need to take a flight.
What I would like is to turn on the lights, when my iPhones’ alarm starts.
Did I miss it or did you find out a way to do it?
Just HomeKit.