Measure time the TV is ON

To track how long your TV is on in Home Assistant, you can use the template sensor and history statistics integration. Assuming your TV has an entity (e.g., switch.tv or media_player.tv), here's a YAML setup to calculate the time it's on each day.

Step 1: Create a Template Binary Sensor

First, create a binary sensor to detect when your TV is on:

binary_sensor:
  - platform: template
    sensors:
      tv_status:
        friendly_name: "TV Status"
        value_template: "{{ is_state('media_player.tv', 'on') }}"

Replace media_player.tv with the actual entity ID of your TV. This sensor will be on when the TV is on.

Step 2: Use the History Statistics Sensor

Now, use the history statistics sensor to calculate the total time the TV has been on each day:

sensor:
  - platform: history_stats
    name: TV On Time Today
    entity_id: binary_sensor.tv_status
    state: "on"
    type: time
    start: "{{ now().replace(hour=0, minute=0, second=0) }}"
    end: "{{ now() }}"

This setup will provide a TV On Time Today sensor, which resets every day and accumulates the time your TV was on.

Optional: Adding a Weekly or Monthly Tracker

You can duplicate the history_stats sensor and adjust the start time to track weekly or monthly usage:

  - platform: history_stats
    name: TV On Time This Week
    entity_id: binary_sensor.tv_status
    state: "on"
    type: time
    start: "{{ now().replace(hour=0, minute=0, second=0) - timedelta(days=now().weekday()) }}"
    end: "{{ now() }}"

This will give you daily, weekly, and customizable duration insights on your TV's usage. Let me know if you'd like to add automations or notifications based on this data!