home-assistant.io/source/cookbook/automation_sun.markdown

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layout	title	description	date	sidebar	comments	sharing	footer
page	Automation examples using the sun	Automation examples that use the sun.	2015-10-08 19:05	false	false	true	true

Turn on the living room lights 45 minutes before sunset if anyone home

automation:
  trigger:
    platform: sun
    event: sunset
    offset: "-00:45:00"
  condition:
    platform: state
    entity_id: group.all_devices
    state: home
  action:
    service: homeassistant.turn_on
    entity_id: group.living_room_lights

Natural wake up light

Note, Philips Hue is currently the only light platform that support transitions.

automation:
  trigger:
    platform: time
    after: "07:15:00"
  action:
    service: light.turn_on
    entity_id: light.bedroom
    data:
      # 900 seconds = 15 minutes
      transition: 900