Sensor template time remaining calculation

Configuration
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1

Hey guys!

Could u please help me with these template for calculating current time and time in sun.sun next sunrise?

I want to get a sensor that will now show the time remaining until the next sunrise.

2

Next sunrise is this many seconds away:

{{ as_timestamp(state_attr('sun.sun', 'next_rising')) - as_timestamp(now()) }}
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3

Thanks, but I can’t add custom timestamp in your template for human readable value. Could u help me?

4

This is overkill as days aren’t needed but I just cut and paste a known good template as I’m in a rush:

value_template: >
  {% set time = (as_timestamp(state_attr('sun.sun', 'next_rising')) - as_timestamp(now())) | int %}
  {% set minutes = ((time % 3600) / 60) | int %}
  {% set hours = ((time % 86400) / 3600) | int %}
  {% set days = (time / 86400) | int %}

  {%- if time < 60 -%}
    Less than a minute
    {%- else -%}
    {%- if days > 0 -%}
      {{ days }}d
    {%- endif -%}
    {%- if hours > 0 -%}
      {%- if days > 0 -%}
        {{ ' ' }}
      {%- endif -%}
      {{ hours }}h
    {%- endif -%}
    {%- if minutes > 0 -%}
      {%- if days > 0 or hours > 0 -%}
        {{ ' ' }}
      {%- endif -%}
      {{ minutes }}m
    {%- endif -%}
  {%- endif -%}
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5

Sorry, It was my mistake, here is working for me:

{{ (as_timestamp(state_attr('sun.sun', 'next_rising')) - as_timestamp(now())) | timestamp_custom('%Hh %Mm %Ss') }}

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6

Btw, how can I directly take into template the time zone? Since the time turns out to be an hour less, right now I got utc+3 summer time.

7

In the template editor which one of these is incorrect?

{{ state_attr('sun.sun', 'next_rising') }}
{{ now() }}
8
  1. 2021-09-07T02:58:57.122552+00:00
  2. 2021-09-06 14:47:13.070342+03:00 - this is seems like my current time

Actually I do something not understandable for me at all, but, I received what I needed in my ask, time before 1 hour 'till next sunrise:

{{ ((as_timestamp(states.sun.sun.attributes.next_rising) | int - as_timestamp(now())) - 60*240) | timestamp_custom('%Hh %Mm') }}

But it seems to me that these are experiments with not fully understanding the template.

9

My next sunrise is tomorrow at 5:58 AM

My current time is 2:53 PM

My sensor is returning a value: 14:05

If we add it up it turns out 4:48 AM - 1 hour 'till sunsire.

10

Next rising is in UTC just like the documents say (I should have checked):

Screenshot 2021-09-06 at 21-57-51 Sun
Screenshot 2021-09-06 at 21-57-51 Sun697×144 2.84 KB

Try this:

{{ (as_timestamp(state_attr('sun.sun', 'next_rising')) - as_timestamp(utcnow())) | timestamp_custom('%Hh %Mm %Ss',false) }}

Screenshot 2021-09-06 at 22-20-24 Templating

The local_time option was the issue. It was adding 3 hours.

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11

Thanks, now my template looks like this:

{{ ((as_timestamp(states.sun.sun.attributes.next_rising) | int - as_timestamp(now())) - 60*60) | timestamp_custom('%H %M %S', false) }}

12

This isn’t needed:

if you use utcnow() as in my template.

Doing that means you won’t have to change the template at the end of daylight savings.

13

This is necessary if I want to subtract 1 hour, as I wrote above.

14
15

And here I started thinking …

16

Maybe I misinterpreted at first, my goal was to get the time 1 hour before sunrise.

17

Oh right. I missed that. Sorry.

Actually I just tested it. Using now() or utcnow() makes no difference. Which is strange.

18

So, this sensor, it get me what I need:

{{ ((as_timestamp(states.sun.sun.attributes.next_rising) | int - as_timestamp(now())) - 60*60) | timestamp_custom('%H %M %S', false) }} time before sunrise -1 hour.

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19

Do you think this should depend on the DST? Or I misread your answer.

20

I worked it out. as_timestamp strips the timezone info:

Screenshot 2021-09-06 at 22-48-54 Developer Tools - Home Assistant
Screenshot 2021-09-06 at 22-48-54 Developer Tools - Home Assistant1333×460 15.8 KB

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