# realtimeSinceStartup

> The real time in seconds since the game started (Read Only).

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.3/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static float realtimeSinceStartup { get; }
```

### Remarks

In most cases, use [Time.realtimeSinceStartupAsDouble](/engine/6000.3/script-reference/unityengine/time/realtimesincestartupasdouble.md), which offers more precision, particularly over extended periods of real-world time. Refer to its documentation for information about both properties.

Use `Time.realtimeSinceStartup` with other single-precision properties that return float instead of double such as `fixedTime`, `fixedUnscaledTime`, `time`, `timeSinceLevelLoad`, and `unscaledTime`.