# PdfValidationTimeSource enum

> Where the time certificates were checked at comes from.

Namespace: [PdfNetStack.Signing](https://www.jadev-corp.com/api/pdfnetstack-signing/)  
Assembly: PdfNetStack.dll  
Package: `PdfNetStack`

Where the time certificates were checked at comes from.

```csharp
public enum PdfValidationTimeSource
```

## Fields

`Current = 0` 

The current time: the signature has no usable timestamp.

`Timestamp = 1` 

The time of a valid RFC 3161 timestamp: the signature timestamp, or the document timestamp itself.

`Caller = 2` 

The time given in [ValidationTime](https://www.jadev-corp.com/api/pdfnetstack-signing/pdfvalidationoptions/#PdfNetStack_Signing_PdfValidationOptions_ValidationTime).

Source: https://www.jadev-corp.com/pdfnetstack/api/pdfnetstack-signing/pdfvalidationtimesource/