datetime_functions.yaml

binary_sensor:
  # Next Alarm templates #
  - platform: template
    sensors:
      trav_alarm_trigger_5min:
        value_template: >-
          {% set alarm_time = as_timestamp(states('sensor.travis_7_pro_next_alarm'),0) %}
          {% set time_now = as_timestamp(now() | default(0)) %}
          {% if alarm_time != 0 %}
            {{ time_now >= alarm_time - 900 }}
          {% else %}
            unavailable
          {% endif %}

sensor:
  - platform: time_date
    display_options:
      - "date"

template:
  - sensor:
      - name: Days Remaining in Month
        unique_id: days_remaining_in_month
        state: >
          {% set this = now().replace(hour=0).replace(minute=0).replace(second=0).replace(microsecond=0) %}
          {% set next = this.month + 1 if this.month + 1 <= 12 else 1 %}
          {% set last = this.replace(year=this.year + 1, month=1, day=1) if now().month == 12 else this.replace(month=next, day=1) %}
          {{ (last.date() - this.date()).days - 1 }}

      - name: Days Passed in Month
        unique_id: days_passed_in_month
        state: >
          {% set this = now().replace(hour=0).replace(minute=0).replace(second=0).replace(microsecond=0) %}
          {% set next = this.month + 1 if this.month + 1 <= 12 else 1 %}
          {% set first = this.replace(day=1) %}
          {{ (this.date() - first.date()).days }}

      - name: Days Remaining in Year
        unique_id: days_remaining_in_year
        state: >
          {% set this = now().replace(hour=0).replace(minute=0).replace(second=0).replace(microsecond=0) %}
          {% set next = this.year + 1 %}
          {% set last = this.replace(year=next, month=1, day=1) %}
          {{ (last.date() - this.date()).days }}

      - name: Days Passed in Year
        unique_id: days_passed_in_year
        state: >
          {% set this = now().replace(hour=0).replace(minute=0).replace(second=0).replace(microsecond=0) %}
          {% set first = this.replace(month=1, day=1) %}
          {{ (this.date() - first.date()).days }}