Date Templating with a sensor

Configuration
1

Is there a template I could use for a date and binary sensor?

Date >= Sept 25th AND binary_sensor.name = off?

2

the easiest way I can see is to find the day number of the year that corresponds to your desired date then compare it to the day number of now:

{% set date_val = strptime("2021-09-25",  '%Y-%m-%d') %}
 
{{ (now().strftime('%j') | int > date_val.strftime('%j') | int) and states('binary_sensor.some_name')  }}

plug in the date you want into the “date_val” string and the correct binary sensor entity_id.

You could also substitute a date only input_datetime for date_val…I think…I haven’t tested it but I think it should work.

3 
{{ (now().month, now().day) >= (9,25) and is_state('binary_sensor.name', 'off') }}
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4

I didn’t realize you could compare lists like that.

so it compares each element in the first list to its corresponding element in the second list?

5

Yes. Technically speaking, the parentheses make it a tuple whereas if they were brackets it would be a list.

Tuple vs list

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