# remainingLifetime

> The remaining lifetime of the particle.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

```csharp
public float remainingLifetime { get; set; }
```

### Remarks

This is the time, in seconds, for how long this particle remains alive. When the lifetime drops below zero, the system destroys the particle.