Code-Snippet für Template-Sensor zur Berechnung eines Timestamps aus input Helper

configuration.yaml

template:
  - sensor:
      - name: WakeUp Light Timestamp
        device_class: timestamp
        state: >
          {% if is_state("binary_sensor.workday_sensor", "on") %}
            {{ today_at(states('input_datetime.aufwachzeit_arbeitstag')) }}
          {% elif is_state("binary_sensor.workday_sensor", "off") %}
            {{ today_at(states('input_datetime.aufwachzeit_freizeit')) }}
          {% endif %}