Turn on scene if illuminance will gow under a specific illuminance and if in specific time frame. Turn off group elements, if illuminance is above threshold. Illuminance check will be done every five minutes and not by every sensor state change. This saves performance.

enable scene by illuminance.yaml

blueprint:
  name: Activate scene by illuminance in time-frame
  description: Turn on scene if illuminance will gow under a specific threshold and if in specific time frame. Turn off group elements, if illuminance is above threshold. Scene will not activated if lightgoup is active to prevent an overwrite.
  domain: automation
  source_url: https://gist.github.com/dirkk1980/9e37a046474dc555f75b871c27ad5693
  input:
    lightsensor_entity:
      name: Illuminance Sensor
      selector:
        entity:
          domain: sensor
          device_class: illuminance
    illuminace_level:
      name: Max Illuminance
      description: Maximal immuminance level in lux. If illuminance is higher, scene will not be enabled
      default: 600
      selector:
        number:
          min: 0
          max: 5000
          unit_of_measurement: lux
    off_group:
      name: Elements to turn off
      description: Elements which should be turned off if illuminance is above threshold
      selector:
        entity:
          domain: group
    scene_to_activate:
      name: Scene to activate
      description: Scene which will be activated if illuminance will be under threshold
      selector:
        entity:
          domain: scene
    time_scene_start:
      name: Scene - time frame start
      description: Time from which on scene will be activated
      default: "00:00:00"
      selector:
        time:
    time_scene_end:
      name: Scene - time frame end
      description: Time from which on scene will be not activated
      default: "00:00:00"
      selector:
        time:

mode: single

trigger:
  platform: state
  entity_id: !input lightsensor_entity

action:
  - choose:
      - conditions:
          - condition: time
            after: !input time_scene_start
            before: !input time_scene_end
          - condition: numeric_state
            entity_id: !input lightsensor_entity
            below: !input illuminace_level
          - condition: state
            entity_id: !input off_group
            state: "off"
        sequence:
          - scene: !input scene_to_activate
      - conditions:
          - condition: time
            after: !input time_scene_start
            before: !input time_scene_end
          - condition: numeric_state
            entity_id: !input lightsensor_entity
            above: !input illuminace_level
          - condition: state
            entity_id: !input off_group
            state: "on"
        sequence:
          - service: homeassistant.turn_off
            entity_id: !input off_group
      - conditions:
          - condition: time
            before: !input time_scene_start
            after: !input time_scene_end
          - condition: state
            entity_id: !input off_group
            state: "on"
        sequence:
          - service: homeassistant.turn_off
            entity_id: !input off_group