# Functions in Amazon Athena
<a name="functions"></a>

For changes in functions between Athena engine versions, see [Athena engine versioning](engine-versions.md). For a list of the time zones that can be used with the `AT TIME ZONE` operator, see [Use supported time zones](athena-supported-time-zones.md).

**Topics**
+ [Athena engine version 3](functions-env3.md)

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon Athena. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query athena` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).