store-a-datetime-example.yaml

esphome:
  name: store-a-datetime-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

button:
  - platform: template
    name: Check Datetime value
    on_press: 
      then:
        - lambda: |-
            ESP_LOGI("Button", "You can access the datetime as a string - %s - is: %s", id(my_datetime).get_name().c_str(), id(my_datetime).state.c_str() );
        - lambda: |-
            ESP_LOGI("Button", "You can also access the datetime values directly - hour: %d", id(my_datetime).state_as_time.hour );
            ESP_LOGI("Button", "And do calucaltions with them");
            id(my_datetime).state_as_time.recalc_timestamp_utc();
            ESP_LOGI("Button", "sntp timestamp: %d   picked timestamp: %d", id(my_time).now().timestamp, (id(my_datetime).state_as_time.timestamp - ESPTime::timezone_offset()));
            if (id(my_time).now().timestamp > (id(my_datetime).state_as_time.timestamp - ESPTime::timezone_offset())) {
              ESP_LOGI("Button", "The selected date/time is smaler than the current local date/time");
            } else {
              ESP_LOGI("Button", "The selected date/time is bigger than the current local date/time");
            }

datetime:
  - platform: template
    id: my_datetime
    name: Pick a Datetime
    optimistic: yes
    # restore_value: true
    # valid formats are '%Y-%m-%d %H:%M:%S' - '%Y-%m-%d %H:%M' - '%H:%M:%S' - '%H:%M'
    initial_value: "2024-01-30 12:45:00"