---
title: Cron
description: "Scheduled triggers delivered to a scheduled(event) handler."
---

## Configuration

```jsonc
"triggers": { "crons": ["0 3 * * *"] }
```

Each entry is a 5-field cron expression in UTC.

## Usage

```js
scheduled(event) {
  // event.cron -> "0 3 * * *", event.scheduledTime -> epoch milliseconds
}
```

:::note
On a [standalone binary](/docs/get-started/standalone), cron runs on a timer inside the process.
:::

## Related

- [The handler](/docs/concepts/handler): the full `fetch`, `scheduled` and `queue` export