sarah/config/packages/modules/lighting/lights_temperature.yaml

automation:
  - alias: Lighting · Adjust temperature on start
    trigger:
      platform: state
      entity_id:
        - light.living_room_main_lights
        - light.master_bedroom_main_lights
      to: "on"
    action:
      - service: light.turn_on
        data_template:
          entity_id: "{{ trigger.entity_id }}"
          color_temp: >-

            {% if is_state('sun.sun', 'above_horizon') %}
              350
            {% else %}
              500
            {% endif %}

  - alias: Lighting · Master bedroom · Adjust temperature based on time
    trigger:
      platform: state
      entity_id: sun.sun
    condition:
      condition: state
      entity_id: light.master_bedroom_main_lights
      state: "on"
    action:
      - service: light.turn_on
        entity_id: light.master_bedroom_main_lights
        data_template:
          color_temp: >-

            {% if is_state('sun.sun', 'above_horizon') %}
              350
            {% else %}
              500
            {% endif %}

  - alias: Lighting · Living room · Adjust temperature based on time
    trigger:
      platform: state
      entity_id: sun.sun
    condition:
      condition: state
      entity_id: light.living_room_main_lights
      state: "on"
    action:
      - service: light.turn_on
        entity_id: light.living_room_main_lights
        data_template:
          color_temp: >-

            {% if is_state('sun.sun', 'above_horizon') %}
              350
            {% else %}
              500
            {% endif %}