# Data Timestamps

The **`timestamps`** query tells when data in Politigraph last changed, and when the [automation system on GitHub Actions](https://github.com/wevisdemo/politigraph-automation/actions) last scraped data successfully.

```graphql
query {
	timestamps {
		lastNodeUpdatedAt
		lastVoteEventScrapedAt
		lastBillScrapedAt
	}
}
```

Every field is a UTC timestamp, and is `null` when there is no data yet.

| Field                    | Meaning                                                                                                                 |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------- |
| `lastNodeUpdatedAt`      | The last time any node was added or edited, whether by the automation system or our team                                |
| `lastVoteEventScrapedAt` | The last successful scrape of [votes](https://politigraph.wevis.info/en/schema/vote-event/) (**`VoteEvent`** and **`Vote`**) by the automation system |
| `lastBillScrapedAt`      | The last successful scrape of [bills](https://politigraph.wevis.info/en/schema/bill/) (**`Bill`** and its **`BillEvent`**) by the automation system   |

> **Note**
>
> The automation system runs weekly on Sunday night. A successful scrape does not always bring new data. In a week without any vote or bill activity, `lastVoteEventScrapedAt` and `lastBillScrapedAt` change, but `lastNodeUpdatedAt` may not.

These values are cached for up to an hour, so they may lag slightly behind.