set_timer.yaml

alias: Set Timer
description: Set a custom timer
triggers:
  - trigger: conversation
    command:
      - book a timer for {minute} minute[s]
      - book a timer for {second} second[s]
      - book a timer for {hour} hours[s]
      - book a timer for {hour} hours[s] and {minute} minute[s]
      - book a timer for {minute} minute[s] and {second} second[s]
conditions: []
actions:
  - action: input_boolean.turn_on
    metadata: {}
    data: {}
    target:
      entity_id: input_boolean.alarm_play
  - action: timer.start
    metadata: {}
    data:
      duration: |
        {% set t_hour = trigger.slots.hour | default(0) | int %}
        {% set t_sec = trigger.slots.second | default(0) | int %}
        {% set t_min = trigger.slots.minute | default(0) | int %}
        {{t_hour}}:{{t_min}}:{{t_sec}}
    target:
      entity_id: timer.variable_timer
mode: single