automation:

# Automation to turn on drying at 9pm in the master bedroom (if switched on ith the helper)
  - id: master_bedroom_offpeak_dehumidify
    alias: Master Bedroom Off-Peak Dehumidify
    mode: single
    trigger:
      - platform: time
        at: "21:20:00"
    condition:
      - condition: state
        entity_id: input_boolean.master_bedroom_offpeak_dehumidify
        state: "on"
    action:
      - service: climate.set_hvac_mode
        target:
          entity_id: climate.master_bedroom
        data:
          hvac_mode: dry
      - wait_for_trigger:
          - platform: time
            at: "00:00:00"
      - service: climate.turn_off
        target:
          entity_id: climate.master_bedroom