---
title: timestamp
framework: storekit
role: symbol
role_heading: Instance Property
path: storekit/product/subscriptionoffer/signature/timestamp
---

# timestamp

A timestamp your server generates in UNIX time format, in milliseconds, that indicates the time the server generated the signature.

## Declaration

```swift
var timestamp: Int
```

## See Also

### Getting signature elements

- [keyID](storekit/product/subscriptionoffer/signature/keyid.md)
- [nonce](storekit/product/subscriptionoffer/signature/nonce.md)
- [signature](storekit/product/subscriptionoffer/signature/signature.md)