---
title: astronomicalDawn
framework: weatherkit
role: symbol
role_heading: Instance Property
path: weatherkit/sunevents/astronomicaldawn
---

# astronomicalDawn

The time of astronomical sunrise when the sun’s center is 18° below the horizon.

## Declaration

```swift
var astronomicalDawn: Date?
```

## Discussion

Discussion A small portion of the sun’s rays begin to illuminate the sky and stars begin to disappear. This property is optional because it’s possible for the sun to not rise on a given day, at extreme latitudes.

## See Also

### Getting the sun events

- [astronomicalDusk](weatherkit/sunevents/astronomicaldusk.md)
- [civilDawn](weatherkit/sunevents/civildawn.md)
- [civilDusk](weatherkit/sunevents/civildusk.md)
- [nauticalDawn](weatherkit/sunevents/nauticaldawn.md)
- [nauticalDusk](weatherkit/sunevents/nauticaldusk.md)
- [solarMidnight](weatherkit/sunevents/solarmidnight.md)
- [solarNoon](weatherkit/sunevents/solarnoon.md)
- [sunrise](weatherkit/sunevents/sunrise.md)
- [sunset](weatherkit/sunevents/sunset.md)