Wake up time based on holidays

config/lovelace/home_dashboard/09_system.yaml

@@ -63,6 +63,7 @@ cards:
           - automation.sleep_mode_disable
           - automation.sleep_mode_toggle_on_bedside_switch_double_click
           - automation.alarm_wake_up
+          - automation.alarm_set_time
 
       - type: divider
 

config/packages/modes/sleep_mode.yaml

@@ -1,6 +1,6 @@
 input_datetime:
   alarm_time:
-    name: Wake up Time
+    name: Wake up time
     has_date: false
     has_time: true
 
@@ -104,3 +104,18 @@ automation:
         entity_id: media_player.master_bedroom
         data:
           volume_level: 0.3
+
+  - alias: Alarm · Set time
+    trigger:
+      platform: time
+      at: "21:00:00"
+    action:
+      - service: input_datetime.set_datetime
+        data_template:
+          entity_id: input_datetime.alarm_time
+          time: >-
+            {% if is_state('binary_sensor.workday_tomorrow', 'on') %}
+              09:20:00
+            {% else %}
+              10:20:00
+            {% endif %}

config/packages/sensors/workday.yaml

@@ -0,0 +1,19 @@
+binary_sensor:
+  - platform: workday
+    name: Workday today
+    country: BG
+    add_holidays:
+      - '2020-04-20'
+      - '2020-05-25'
+      - '2020-09-07'
+      - '2020-12-28'
+
+  - platform: workday
+    name: Workday tomorrow
+    days_offset: 1
+    country: BG
+    add_holidays:
+      - '2020-04-20'
+      - '2020-05-25'
+      - '2020-09-07'
+      - '2020-12-28'