Add offset time to a template time sensor

Configuration
1

I used a template to give me a time for my next alarm.

{% if states('sensor.sm_a526u_next_alarm') not in ['unavailable', 'None'] %}
{{ (states('sensor.sm_a526u_next_alarm')|as_datetime|as_local).strftime('%H:%M') }}
{% else %} No Next Alarm{% endif %}

Which gives me
Next Alarm 06:33

I have an automation that kicks in 15 minutes after this for the coffee maker. How can I add 15 minutes to the template so I can show true brew time? Thanks.

2 
{% if states('sensor.sm_a526u_next_alarm') not in ['unavailable', 'None'] %}
{{ (states('sensor.sm_a526u_next_alarm')|as_datetime|as_local + timedelta(minutes=15)).strftime('%H:%M') }}
{% else %} No Next Alarm{% endif %}
1 Like
3

Outstanding. Thank you.