Closes #394 - Thanks @SILVRRGIT for fixing and closing this issue. (til 2025!) lol

config/packages/holiday.yaml

@@ -38,19 +38,17 @@ sensor:
       {% endif %}
       {{ holiday }}
 
-  # - platform: rest
-  #   resource: http://www.webcal.fi/cal.php?id=335&format=json&start_year=current_year&end_year=2020&tz=America%2FNew_York
-  #   name: Flag
-  #   scan_interval: 14400
-  #   value_template: >-
-  #     {% set is_flag_day = False %}
-  #     {%- for day_val in value_json -%}
-  #       {% set now_string = now().strftime('%Y-%m-%d') %}
-  #       {%- if day_val.date==now_string and day_val.flag_day==1 -%}
-  #         {% set is_flag_day = True %}
-  #       {%- endif -%}
-  #     {% endfor %}
-  #     {{is_flag_day}}
+  - platform: rest
+    resource: http://www.webcal.fi/cal.php?id=335&format=json&start_year=current_year&end_year=current_year&tz=America%2FNew_York
+    name: Flag
+    scan_interval: 14400
+    value_template: >-
+      {%- set now_string = now().strftime('%Y-%m-%d') %}
+      {% for day_val in value_json if day_val.date == now_string  %}
+        True
+        {% else %}
+        False
+      {% endfor -%}
 
 ###############################################################################
 # Automation that notifies of a Holiday "state" change