diff --git a/automations.yaml b/automations.yaml
index f4683d6..1a9bd0a 100644
--- a/automations.yaml
+++ b/automations.yaml
@@ -250,3 +250,28 @@
       - light.living_room_lights
       - light.mud_room_overhead
   mode: single
+- alias: Set State Night
+  description: Set the state of binary_sensor.night accurately on HA startup
+  trigger:
+  - platform: homeassistant
+    event: start
+  action:
+  - choose:
+    - conditions:
+      - condition: sun
+        after: sunset
+        before_offset: -00:30
+      sequence:
+      - service: python_script.hass_entities
+        data:
+          action: set_state
+          entity_id: binary_sensor.night
+          state: 'on'
+    default:
+    - service: python_script.hass_entities
+      data:
+        action: set_state
+        entity_id: binary_sensor.night
+        state: 'off'
+  hide_entity: true
+  initial_state: 'on'