Entity-based "Time" trigger with Offset

Blueprints Exchange
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Trigger automations prior to the value of an Input datetime helper or Sensor with device class timestamp with a user-defined offset.

Open your Home Assistant instance and show the blueprint import dialog with a specific blueprint pre-filled.

The Automation:

  • Trigger:
    • You can choose either an Input datetime or a Sensor whose device class is timestamp to provide the initial time.
    • When using Input datetime entities the trigger will follow the same general rules as Time triggers based on Input datetimes.
    • In the offset, specify the days, hours, and/or minutes before the initial time that you want your automation to trigger at. Due to the way time templates work, triggers will always fire at the top of the minute and offsets less than 2 minutes are not recommended.
  • Condition and Action:
    • Conditions and Actions are completely configurable by the user.



blueprint:
  name: Entity-based "Time" trigger with Offset
  description: |
    Trigger a set of actions prior to a value from a time entity. 
    Select **either** an Input Datetime helper **or** a Sensor with device class timestamp.
    The template-based trigger used only approximates a Time trigger and is limited in terms of accuracy. The trigger will always fire at the top of the minute. Time offsets less than 2 minutes are not recommended since they may not reliably trigger prior to the target value. 
  domain: automation

  input:
    sensor:
      name: Sensor
      description: ""
      default: ""
      selector:
        entity:
          domain: 
            - sensor
          device_class: timestamp
    dt_helper:
      name: Input Datetime Helper
      description: ""
      default: ""
      selector:
        entity:
          domain: 
            - input_datetime
    offset:
      name: Time offset
      description: The number of hours to use for the timedelta
      selector:
        duration:
          enable_day: true
    conditional:
      name: Conditions
      description: Conditions
      selector:
        condition:
      default: []
    action:
      name: Action
      description: Action to perform
      selector:
        action:
      default: []

mode: single

trigger_variables:
  var_dt_helper: !input dt_helper
  var_sensor: !input sensor
  var_offset: !input offset

trigger:
  - platform: template
    value_template: |-
      {%- if var_dt_helper is defined and var_dt_helper not in ['', none, 'None'] %}
        {%- set (hd, ht) =(state_attr(var_dt_helper, 'has_date'), state_attr(var_dt_helper, 'has_time')) %}
        {%- if hd and not ht %}
          {%- set dt_helper = today_at() %}
        {%- elif hd and ht %}
          {%- set dt_helper = states(var_dt_helper)|as_datetime|as_local %}
        {%- else %}
          {%- set dt_helper = today_at(states(var_dt_helper)) %}
        {% endif %}
      {%- endif %}

      {% set dt = states(var_sensor)|as_datetime|as_local 
      if var_sensor is defined and var_sensor not in ['', none, 'None'] 
      else dt_helper %}

      {% set delta = timedelta(days = var_offset.days|default(0), hours = var_offset.hours|default(0),
      minutes = var_offset.minutes|default(0), seconds = var_offset.seconds|default(0)) %}

      {{ (now() + delta > dt) }}
condition: !input conditional
action: !input action