Time trigger with repeat

Configuration
3

I do this personally:

trigger:
  platform: template
  value_template: >-
    {{ is_state('switch.some_switch', 'on')
        and now() >= today_at('06:30')
        and now().minute % 30 == 0 and now().second == 0 }}
action:
  service: switch.turn_on
  data:
    entity_id: switch.some_switch

Replace the some_switch bit with whatever your condition is. Runs the automation at your specified time and then every half an hour for the rest of the day until the switch changes.

EDIT: OH “after x runs”, duh. I thought x meant an entity, like a retry loop to ensure an entity turns on :man_facepalming: