on-time-example.yaml

esphome:
  name: on-time-example

esp32:
  board: esp32dev
  framework:
    type: arduino

logger:
  level: DEBUG

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

web_server:
  js_include: "www.js"
  js_url: ""

time:
  - platform: sntp
    id: my_time
    on_time_sync:
      then:
        - datetime.set:
            id: turn_on_time_datetime
            value: !lambda |-
              return ESPTime::from_epoch_local(id(my_time).now().timestamp + 30).strftime("%H:%M:%S");
        - datetime.set:
            id: turn_off_time_datetime
            value: !lambda |-
              return ESPTime::from_epoch_local(id(my_time).now().timestamp + 40).strftime("%H:%M:%S");

button:
  - platform: template
    name: Set the time inputs to local time + 10 seconds
    on_press: 
      then:
        - datetime.set:
            id: turn_on_time_datetime
            value: !lambda |-
              return ESPTime::from_epoch_local(id(my_time).now().timestamp + 10).strftime("%H:%M:%S");
        - datetime.set:
            id: turn_off_time_datetime
            value: !lambda |-
              return ESPTime::from_epoch_local(id(my_time).now().timestamp + 20).strftime("%H:%M:%S");

switch:
  - platform: template
    name: "Template Switch"
    id: my_switch
    optimistic: yes

datetime:
  - platform: template
    id: turn_on_time_datetime
    name: 1.Time to turn the switch on
    time_id: my_time
    optimistic: yes
    # valid formats are '%Y-%m-%d %H:%M:%S' - '%Y-%m-%d %H:%M' - '%H:%M:%S' - '%H:%M'
    initial_value: "16:45:20"
    on_time:
      - switch.turn_on:
          id: my_switch

  - platform: template
    id: turn_off_time_datetime
    name: 2.Time to trun the switch off
    time_id: my_time
    optimistic: yes
    # valid formats are '%Y-%m-%d %H:%M:%S' - '%Y-%m-%d %H:%M' - '%H:%M:%S' - '%H:%M'
    initial_value: "16:45:20"
    on_time:
      - switch.turn_off:
          id: my_switch