History_stats period calculation problem

Configuration
1

i created item history_stats:

- platform: history_stats
    name: PowerUp
    entity_id: binary_sensor.power_up
    state: "on"
    type: time
    start: "{{ now().replace(hour=20, minute=0, second=0) }}"
    duration: 12:00

but the timing stops at 00:00
where is my error?
I need to count the period from 20:00 to 8:00
binary_sensor always on

2

Can’t anyone help?

3

You have to adjust your start time. now() always returns the current day. So when midnight hits, it’s now set to today at hour 20. So you should subtract 1 day from the start time if the current time is less than the start time.

  - platform: history_stats
    name: PowerUp
    entity_id: binary_sensor.power_up
    state: "on"
    type: time
    start: >
      {% set t = now() %}
      {% set start = t.replace(hour=20, minute=0, second=0) %}
      {% if start > t %}
        {{ start - timedelta(days=1) }}
      {% else %}
        {{ start }}
      {% endif %}
    duration: 12:00
4

Also, please be patient for responses. Requesting help 12 hours after a post is a little soon. People will respond, it make take a few days.

5

Thank you very much for your comprehensive answer. From now on I will be more patient.

6

unfortunately your code does not count the time at all
record 12:00 is 12 minutes
record 12:00:00 12 hours
error in documentation