---
title: IsValid(RationalTime)
product: Unity Editor
version: '6000.3'
latest_version: '7000.0'
status: This page documents version 6000.3. The latest version is 7000.0.
canonical: https://docs.unity.com/en-us/engine/6000.3/script-reference/unity/integertime/rationaltimeextensions/isvalid
latest_url: https://docs.unity.com/en-us/engine/7000.0/script-reference/unity/integertime/rationaltimeextensions/isvalid.md
last_updated: 2026-09-14
generated_at: 2026-11-15T03:17:54.217Z
locale: en-us
---

# IsValid(RationalTime)

> Validity check.

## Definition

* **Type:** Method
* **Namespace:** [Unity.IntegerTime](/engine/6000.3/script-reference/unity/integertime.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static bool IsValid(this RationalTime value)
```

### Parameters

**** (\[RationalTime]\(/engine/6000.3/script-reference/unity/integertime/rationaltime)): 

### Returns

| Type                                                          | Description                                              |
| ------------------------------------------------------------- | -------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if the TicksPerSecond is valid and false otherwise. |