## isDateTimeString() function

Returns true if the input value is a YYYY-MM-DDThh:mm:ss.sssZ date/time string.

**Signature:**
```typescript
export declare function isDateTimeString(input: unknown): input is string;
```

## Parameters

| Parameter | Type | Description |
| --- | --- | --- |
| input | unknown | Unknown input value. |

**Returns:**

input is string

True if the input is a date/time string.