Help needed with a simple timer

I have 2 sonoff s20 smart plugs flashed with tasmota 6.7.1.
I want set a timer for each plug such that at a set time or times, each smart plug is switched on for a set time. I have tried the automation editor but I haven’t a clue.
Any help welcome.

Here an example of code I use to turn on my water heater which is connected to a TP-Link smart outlet. The code uses automation to turn on and turn off a switch at a time you can enter into a time box in the ui. It also provides a separate status ui for the switch and time remaining. The status ui also lets you manually start the switch as well.

Add input_datetime, time and timer to configuration.yaml

input_datetime:
  pump_morning_on:
    has_date: false
    has_time: true

sensor:
  - platform: time_date
    display_options:
      - 'time'
timer:
  pump:
    duration: '00:30:00'

Then automation to turn it on and turn off automatically when timer is done

# Pump Automations
  - alias: 'Pump Morning On'
    trigger:
      platform: template
      value_template: >
        {{ states('sensor.time')
          == (states.input_datetime.pump_morning_on.attributes.timestamp
            | int | timestamp_custom('%H:%M', False)) }}
    action:
      - service: script.pump_timer

  - alias: 'Pump Timeout'
    trigger:
      platform: event
      event_type: timer.finished
      event_data:
        entity_id: timer.pump
    action:
      - service: switch.turn_off
        entity_id: switch.pump

Add a small script. Use a script so it can be started from an automation or manually from the ui.

# Pump Scripts
  pump_timer:
    alias: 'Pump Timer'
    sequence:
      - condition: state
        entity_id: timer.pump
        state: 'idle'
      - service: switch.turn_on
        entity_id: switch.pump
      - service: timer.start
        entity_id: timer.pump

Add following to ui entities

      # Pump status
      - type: entities
        title: Water Heater 
        show_header_toggle: false
        entities:
          - type: call-service
            name: Pump
            icon: mdi:water-pump
            action_name: Start
            service: script.turn_on
            service_data:
              entity_id: script.pump_timer
          - entity: timer.pump
            name: Time remaining
          - type: section
            label: '(Schedule 7:00am-7:30am daily)'

      # Settings for time input
      - type: entities
        title: Switches
        show_header_toggle: false
        entities:
          - entity: input_datetime.pump_morning_on
            name: Pump on at