Front-end input for a tod binary_sensor to trigger script w/ input variables

The ask: Which card ought one to select to provide a user-selectable datetime input into a script which calls a python_script to set states of a tod binary_sensor?

Background: I have a blueprint (for automation) which, based on mmWave presence sensors, triggers automations controlling lights, switches, temperatures/thermostats and such. Based on the boss’s (Mrs) request, i added a do not disturb (DND) feature to the blueprint based on a time of day binary_sensor from the helper section of lovelace UI. Such that, if DND is on then presence sensors’ state changes don’t trigger automations; else it does. Blueprint/automation worked like a charm.

Then the boss requested an ability to make distinction between weekdays and weekends. No problem. I created a script (below) to do so. Went above and beyond (or so i thought) to accommodate holidays as well. It involved my first foray into python_script. Easy peasy courtesy of many other well-seasoned HA folks.

But, boss’s latest request stumped me a little bit. She wants to be able to change this DND behavior from her (non-admin) dashboard view. I have yet to find an equivalent of an input card which allows manipulating datetime object which can then be passed an input to the above script.

alias: set_dnd
description: >
  Used to set DND mode which controls zzz_mode sensor. The idea is:

  - Set default values for variables; change based on weekeday or
  weekend/holiday

  - If no user input is provided, then set DND based on default times; else use
  user input
variables:
  def_state: "on"
  def_weekday_before: "07:00"
  def_weekday_after_time: "21:30"
  def_weekend_before: "08:00"
  def_weekend_after_time: "22:00"
fields:
  i_state:
    name: State
    description: Whether we want to set DND to ON or OFF
    selector:
      state:
        entity_id: binary_sensor.zzz_mode
    required: false
    default: "on"
    example: On, Off
  i_weekday_after:
    name: After for weekday
    description: Time during weekday after which DND is activated
    selector:
      datetime: null
    required: true
  i_weekend_after:
    name: After for weekend
    description: Time during weekend after which DND is activated
    selector:
      datetime: null
    required: false
sequence:
  - service: python_script.set_state
    data:
      entity_id: binary_sensor.zzz_mode
      state: |
        {% if i_state is none %}
          {{ def_state }}
        {% else %}
          {{ i_state }}
        {% endif %}
      after: >
        {% set n = now () %} {% set def_weekday_after = (((n|string)[:11] ~
        def_weekday_after_time) | as_datetime|as_local).isoformat() %} {% set
        def_weekend_after = (((n|string)[:11] ~ def_weekend_after_time) |
        as_datetime|as_local).isoformat() %} {% if
        is_state('binary_sensor.workday', 'on') and i_weekday_after is not none
        %}
          {{ ((i_weekday_after|string) | as_datetime | as_local).isoformat() }}
        {% elif is_state('binary_sensor.workday', 'on') and i_weekday_after is
        none %}
          {{ def_weekday_after }}
        {% elif is_state('binary_sensor.workday', 'off') and i_weekend_after is
        not none %}
          {{ ((i_weekend_after|string) | as_datetime | as_local).isoformat() }}
        {% else %}
          {{ def_weekend_after }}
        {% endif %}        
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