The code to display it only with number | Home Assistant | Page 1

Update (Still not working tho):

I've created a sensor like:

platform: template
sensors:
  month:
    friendly_name: "Month of the year"
    value_template: >
      {{ now().strftime('%b') }}

And in the ESP device:

time:
  - platform: homeassistant
    id: homeassistant_time
    on_time:
      - seconds: 0
        minutes: /1
        then:
          - lambda: id(disp1).set_component_text_printf("Home.time", "%02i:%02i", id(homeassistant_time).now().hour, id(homeassistant_time).now().minute);
          - lambda: id(disp1).set_component_text_printf("Home.date", "%02i, %s", id(homeassistant_time).now().day_of_month, id(month).state.c_str());

And a TextSensor

text_sensor:
  - platform: homeassistant
    id: month
    entity_id: sensor.month
    attribute: state

#The code to display it only with number