# ElapsedTime

> The total cumulative elapsed time in seconds.

## Definition

* **Type:** Field
* **Namespace:** [Unity.Core](/engine/7000.0/script-reference/unity/core.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public readonly double ElapsedTime
```

### Remarks

The ElapsedTime for each World is initialized to zero when the World is created. Thus, comparing timestamps across Worlds (or between Worlds and MonoBehaviours) is generally an error.