WLED randomize Christmas Lights

I have a string of lights using WLED.
I have been able to configure a random Christmas theme of patterns as an HA automation.
The trouble I am having is that I want the lights to start at 4 pm and randomize every 5 minutes.
It is the 5 minute “trigger” I can not figure out.
This is what I would normally use.

    trigger:
      platform: time_pattern
      minutes: "5"

When this is added to the rest of my code (see below) it gives me errors.
How would I proprly add this?

####################################################
#       CHRISTMAS LIGHTS ON  08Dec2021             #
####################################################
- id: "2aa1433d-3104-4a59-aadb-9025112ad466"
  alias: "Lights - Christmas Lights ON"
  description: Christmas Lights ON
  trigger:
    - platform: time
      at: "16:00:00"
  condition:
    condition: state
    entity_id: light.wled_holiday_4
    state: "on"
  action:
    - service: light.turn_on
      data:
        speed: 173
        intensity: 255
      data_template:
        entity_id: light.wled_holiday_4
        effect: "{{ states('input_select.led_effects') }}"
    - service: input_select.select_next
      entity_id: input_select.led_effects
####################################################
#            END OF CONFIGURATION FILE             #
####################################################

This is my input select file

input_select:
  led_effects:
    options:
      - Colorloop
      - Dancing Shadows
      - Glitter
      - Colortwinkles
      - Pride 2015
      - Washing Machine

Any help is greatly appreciated.

- id: "2aa1433d-3104-4a59-aadb-9025112ad466"
  alias: "Lights - Christmas Lights ON"
  description: Christmas Lights ON
  trigger:
    - platform: time_pattern
      minutes: "/5"
  condition:
    - condition: state
      entity_id: light.wled_holiday_4
      state: "on"
    - condition: time
      after: "16:00:00"
      before: ### your stop time here
1 Like

Thank you, thank you.
It worked.
Happy holidays