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# civilDusk

The time of civil sunset, when the sun’s center is 6° below the horizon.

```
var civilDusk: Date?
```

## Discussion

The sky is often colored
orange or red, and objects are typically distinguishable. Beyond civil dusk, artificial light may be
needed for outdoor activities, depending on weather conditions. This property is optional because
it’s possible for the sun to not set on a given day, at extreme latitudes.

---

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