# Timestamp

> The timestamp associated with this transform.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.XR](/engine/6000.7/script-reference/unityengine/xr.md)
* **Assembly:** UnityEngine.XRModule

```csharp
public ulong Timestamp { get; }
```

### Remarks

A larger value indicates a more recent time. This timestamp can be compared with [MeshGenerationResult.Timestamp](/engine/6000.7/script-reference/unityengine/xr/meshgenerationresult/timestamp.md) to determine whether the generation result (which is asynchronous) contains a newer transform.

Additional Resources: [XRMeshSubsystem.GetUpdatedMeshTransforms](/engine/6000.7/script-reference/unityengine/xr/xrmeshsubsystem/getupdatedmeshtransforms.md)