Help with skodaconnect.set_departure_schedule format

My task is to set charging schedule to my Skoda by using departure timer 3. If the car is at home, this will be set to cheapest electricity time. If away, this will be disabled so that the car can be charged immediately from a public charger.

The issue is that I have not been able to set the charging schedule succesfully. The timer in car does not change. I wonder if there is some parameters that are required or must not be there, or I am just giving bad data. Or even using incorrect action.

Here is POC snippet of my current action, created with GUI.

    then:
      - metadata: {}
        data:
          enabled: true
          recurring: true
          device_id: abcdefghijklmnopqrstuvwxyz
          id: 3
          time: "08:00"
          days: yyyyyyy
          off_peak_start: "02:00"
          off_peak_end: "06:00"
          off_peak_active: true
          charging: true
        enabled: true
        action: skodaconnect.set_departure_schedule

Please assist.