- alias: 'Get Random Time'
     trigger:
     platform: time
     after: '21:00:00'
   action:
     - service: input_slider.select_value
       data_template:
         entity_id: input_slider.hour
         value: '{{ (range(22, 23) | random) }}'
     - service: input_slider.select_value
       data_template:
         entity_id: input_slider.random_minute
         value: '{{ (range(30, 45) | random) }}'

Then simply use that in your light turn off automation:

 - alias: 'Turn lights off'
   trigger:
     platform: template
     value_template: '{{ now.hour == (states.input_slider.random_hour.state | int) and now.minute == (states.input_slider.random_minute.state | int) }}'
   action:
     - service: light.turn_off
       data: 
         entity_id: light.hue_color_lamp_1
 
 
- automation:
  alias: Random GLeft
  initial_state: False
  hide_entity: False
trigger:
  platform: time
  seconds: '/5'
action:
  service: homeassistant.turn_on
  entity_id:
    - light.gright
  data:
    effect: random
    transition: 1
    brightness: 255
    
   
  
  
  # Template Binary Sensors
platform: template
sensors:
  flood_sensor:
    value_template: >-
      {% if states.sensor.everspring_st812_flood_detector_flood_2_5.state == '255' %}
        'on'
      {% elif states.sensor.everspring_st812_flood_detector_flood_2_5.state == '0' %}
        'off'
      {% else %}
        n/a
      {% endif %}