# Timestamp

- [JSON representation](https://developers.google.com/pay/refundable-one-time-payment-code-v2/payment-integrator-refundable-one-time-payment-code-api/Timestamp#SCHEMA_REPRESENTATION)

A timestamp object representing a point on the ISO timeline in milliseconds since the Unix epoch.

| JSON representation |
|---|
| ``` { "epochMillis": string } ``` |

| Fields ||
|---|---|
| `epochMillis` | `string (https://developers.google.com/discovery/v1/type-format format)` **REQUIRED**: Milliseconds since the Unix epoch |