Create front end adjustable timer from an input slider

I wanted to have a timer that I could easily read and adjust on the front end. I decided to use an input slider and adjust its value with automation based on time. I created a input slider from 0 to 100 and displayed it on the front end. This automation advances the input slider from 1 to 100 in 17 minutes. I use automation to reset the input slider or trigger the action I want as in the kitchen light motion sensor example.

automation timer_pos:
    platform: time
    seconds: '/10'
    condition: numeric_state
    entity_id: input_slider.timer
    above: 1
    below: 100
      - service: input_slider.select_value
          entity_id: input_slider.timer
          value: '{{states.input_slider.timer.state|float + 1}}'

You should remove the Scripts tag from the post.