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Remove contradiction in sunset condition (#24005)

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Janick Bergeron 2022-10-14 04:12:24 -07:00 committed by GitHub
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@ -376,16 +376,14 @@ condition:
### Sunset/sunrise condition
The sun condition can also test if the sun has already set or risen when a trigger occurs. The `before` and `after` keys can only be set to `sunset` or `sunrise`. They have a corresponding optional offset value (`before_offset`, `after_offset`) that can be added, similar to the [sun trigger][sun_trigger]. When both keys are used, the result is a logical `and` of separate conditions.
The sun condition can also test if the sun has already set or risen when a trigger occurs. The `before` and `after` keys can only be set to `sunset` or `sunrise`. They have a corresponding optional offset value (`before_offset`, `after_offset`) that can be added, similar to the [sun trigger][sun_trigger].
Note that if only `before` key is used, the condition will be `true` _from midnight_ until sunrise/sunset. If only `after` key is used, the condition will be `true` from sunset/sunrise _until midnight_. Therefore, to cover time between sunset and sunrise one need to use `after: sunset` and `before: sunrise` as 2 separate conditions and combine them using `or`.
Note that if only `before` key is used, the condition will be `true` _from midnight_ until sunrise/sunset. If only `after` key is used, the condition will be `true` from sunset/sunrise _until midnight_. If both `before: sunrise` and `after: sunset` keys are used, the condition will be `true` _from midnight_ until sunrise **and** from sunset _until midnight_. If both `after: sunrise` and `before: sunset` keys are used, the condition will be `true` from sunrise until sunset.
[sun_trigger]: /docs/automation/trigger/#sun-trigger
<div class='note warning'>
The sunset/sunrise conditions do not work in locations inside the polar circles, and also not in locations with a highly skewed local time zone.
In those cases it is advised to use conditions evaluating the solar elevation instead of the before/after sunset/sunrise conditions.
The sunset/sunrise conditions do not work in locations inside the polar circles, and also not in locations with a highly skewed local time zone. In those cases it is advised to use conditions evaluating the solar elevation instead of the before/after sunset/sunrise conditions.
</div>
This is an example of 1 hour offset before sunset:
@ -414,18 +412,6 @@ condition:
before: sunset
```
We cannot use both keys in this case as it will always be `false`.
```yaml
condition:
condition: or
conditions:
- condition: sun
after: sunset
- condition: sun
before: sunrise
```
A visual timeline is provided below showing an example of when these conditions are true. In this chart, sunrise is at 6:00, and sunset is at 18:00 (6:00 PM). The green areas of the chart indicate when the specified conditions are true.
![Graphic showing an example of sun conditions](/images/docs/scripts/sun-conditions.svg)