Timer is not counting in Developer tools - states

[TheAbhor]

Hello,

My first bug report, maybe it's already a known bug (if so, please let me know how to search for knowing bugs or something), maybe it's not a bug, I really don't know .. but :
I'm experimenting a little with the timers in HA and run into the not working situation (ytilis/hass-progress-bar-feature)
(todo in progress as far I can see [Todo : Time value support]) so maybe he struggles with the same problem.

But the bar is working with a number, so it must be in the timer protocol, well ... I think then I'm gonna convert the remaining time to a percentage and use that value, trying so I was looking in the > Developer tools > Current entity states and looked up the timer I was using, there I found that in the timer Attributes : (when I activate the timer) 'remaining: 0:05:00' appeared ...

The problem I see there while the timer was running and on my dashboard the remaining time was counting down,
where in > Developer tools > Current entity states the 'remaining: 0:05:00' stays on 'remaining: 0:05:00' ... even after a few refreshes

Why the uncertainty?

No response

Use cases

Euhm... not sure what to write here

What areas might this affect?

Timers

Anything else?

when I pressed : search for similar discussions*

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timer NOT running :

timer running :

[karwosts]

This is by design, not a bug.

Entities are not allowed to "countdown" time as it would just thrash the state machine for them needing to update every second. So the remaining attribute only updates on pause or start.

If you want a dynamic countdown value in a custom card, then you subtract the time difference between finishes_at and now(), and that can be continually recalculated without needing to get a state update from the backend.

[mik-laj]

It would probably be worth adding this information to the documentation. This isn't the first time I've been asked how to use the timer and what attributes are available.

[TheAbhor]

Ok @karwosts ...
But WHERE can that finishes_at be found ? And how I call it / use it in a template ?
And then is the 'why' is why is that remaining: "0:05:00" doing there bring nothing but only confusion ?

[TheAbhor]

The only thing I want to get out of this is to create a remaining time bar in my dashboard (under the showed timer)

type: tile
entity: timer.lampen_tuin
features:
  - type: custom:progress-bar-feature
    position: bottom
    color: yellow
    time:
      start: start_time
      end: end_time

[Petro31]

finishes at is an attribute on the entity, you will need to use templates with an update frequency of 1 second if you want to build this countdown anywhere. Otherwise you need to use a card that supports counting down for timers. Many do not support that natively. If you're trying to use that custom card, this should be a discussion with that developer, not HA.

[TheAbhor]

Ok, thanks for pointing the way .. I'll try to look there