Trying to create an alarm that uses AM / PM instead of 24 hour format

Found a post by skalavala and tried to copy it into my system but it’s not firing when I test it. Anybody out there that can help me figure out what I’ve got wrong? I know I’m missing something compared with to his regarding the “input_label” portion, I’m not sure what that does or how to replicate it. When I tried to put input_label into my config I get the error “Component not found: input_label”.

Here’s my code in my system:

group:
  alarm_clock:
    name: Alarm Clock
    entities:
      - input_number.slider_hours
      - input_number.slider_minutes
      - input_boolean.am
      - input_boolean.pm
      - sensor.alarm_time
      - input_boolean.week_day_only
      - automation.alarm_clock

sensor:
  - platform: template
    sensors:
      alarm_time:
        friendly_name: 'Alarm Time'
        value_template: '{{ "%0.01d:%0.02d" | format(states("input_number.slider_hours") | int, states("input_number.slider_minutes") | int) }}'

input_number:
  slider_hours:
    name: Hours
    initial: 6
    min: 0
    max: 11
    step: 1

  slider_minutes:
    name: Minutes
    initial: 0
    min: 0
    max: 59
    step: 5

- alias: Update Current Alarm Time
  initial_state: true
  hide_entity: true
  trigger:
  - platform: homeassistant
    event: start
  - platform: state
    entity_id:
    - input_boolean.am
    - input_boolean.pm
    - input_number.slider_hours
    - input_number.slider_minutes
  action:
  - service: input_label.set_value
    entity_id: input_label.alarm_current_time
    data_template:
      value: >
        {%- if states.input_number.slider_hours.state | int < 10 -%}
          {%- if states.input_number.slider_hours.state|int == 0 %}
            12
          {%- else -%}
            {{- 0 ~ states.input_number.slider_hours.state|int -}}
          {%- endif -%}
        {%- else -%}
          {{- states.input_number.slider_hours.state |int -}}
        {% endif -%}:
        {%- if states.input_number.slider_minutes.state | int < 10 -%}
          {{- 0 ~ states.input_number.slider_minutes.state |int -}}
        {%- else -%}
          {{- states.input_number.slider_minutes.state|int -}}
        {%- endif -%}{%- if states.input_boolean.am.state == "on" %} AM{%- else %} PM{%- endif -%}   

- alias: AM Change OFF
  initial_state: true
  hide_entity: true
  trigger:
    platform: state
    entity_id: input_boolean.am
    from: 'on'
    to: 'off'
  action:
  - service: input_boolean.turn_on
    entity_id: input_boolean.pm
  - service: input_boolean.turn_off
    entity_id: input_boolean.am

- alias: AM Change ON
  initial_state: true
  hide_entity: true
  trigger:
    platform: state
    entity_id: input_boolean.am
    from: 'off'
    to: 'on'
  action:
  - service: input_boolean.turn_off
    entity_id: input_boolean.pm
  - service: input_boolean.turn_on
    entity_id: input_boolean.am

- alias: PM Change OFF
  initial_state: true
  hide_entity: true
  trigger:
    platform: state
    entity_id: input_boolean.pm
    from: 'on'
    to: 'off'
  action:
  - service: input_boolean.turn_on
    entity_id: input_boolean.am
  - service: input_boolean.turn_off
    entity_id: input_boolean.pm

- alias: PM Change ON
  initial_state: true
  hide_entity: true
  trigger:
    platform: state
    entity_id: input_boolean.pm
    from: 'off'
    to: 'on'
  action:
  - service: input_boolean.turn_off
    entity_id: input_boolean.am
  - service: input_boolean.turn_on
    entity_id: input_boolean.pm

- alias: Alarm Clock
  initial_state: true
  hide_entity: true
  trigger:
    platform: time
    minutes: '/1'
    seconds: 00
  condition:
    - condition: template
      value_template: '{{ states.binary_sensor.workday_sensor.state == "on" }}'
    - condition: template
      value_template: '{{ states.input_boolean.alarm_clock.state == "on" }}'
    - condition: template
      value_template: >
        {% if states.input_boolean.am.state == "on" %}
          {% set hour = (states.input_number.slider_hours.state | int) %}
        {% else %}
          {% set hour = (states.input_number.slider_hours.state | int) + 12 %}
        {% endif %}
        {{ 'true' if states.sensor.time.state.split(':')[0] |int == hour else 'false' }}
    - condition: template
        value_template: "{{ 'true' if (states.sensor.time.state.split(':')[1]  |int == states.input_number.slider_minutes.state |int) else 'false' }}"
  action:
  - service: notify.ios_jamesjb
    data:
      message: ' Testing Alarm '
      title: ' ALARM '

Here’s the source of code that I used / tried to model mine after:

https://github.com/skalavala/smarthome/blob/master/packages/alarm_clock.yaml

Have you added the packages to config yaml?

  packages: !include_dir_named packages

I’ve never heard of “packages” before. I just assumed the stuff at the top of his code was for customize the icons etc. I just assumed I was missing a custom component or something that I’m not familiar with. I’ve been doing basic home assistant stuff for about 2 years now, but nothing too complicated so any direction you could point me in to learn more would be awesome.