How to run a flow only once a day?

Hm, let’s say on Monday I leave the house at 8 o’clock and the vacuums are started. The next day I leave at 7 o’clock, but the cleaning would not be started cause the countdown time is still greater than 0. What could work is, I set the countdown timer to 24h - $current_time => 24h - 8 o'clock = 16h. This would ensure that the earliest time the flow could run again would be at midnight.
This sounds okay - I will try that!