> ## Documentation Index
> Fetch the complete documentation index at: https://api-docs.usegrade.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Timezones

> List the IANA timezone names accepted by campaign create and update endpoints.

All endpoints below require:

* `X-Application-Id`
* `X-Api-Key`

## GET /sdk/v1/timezones

List the IANA timezone names accepted in campaign `timeZone` fields. The
response includes human-friendly names and labels so you can populate a
timezone selector without maintaining a separate list.

### Response

```json theme={null}
{
  "success": true,
  "data": [
    {
      "name": "America/New_York",
      "displayName": "Eastern Time",
      "displayLabel": "Eastern Time — America/New_York"
    }
  ]
}
```

<ResponseField name="name" type="string">
  The IANA timezone identifier. Send this exact value as `timeZone` when
  creating or updating a campaign.
</ResponseField>

<ResponseField name="displayName" type="string">
  A human-friendly English timezone name.
</ResponseField>

<ResponseField name="displayLabel" type="string">
  A ready-to-render label containing the friendly name and IANA identifier.
</ResponseField>

<Note>
  Store and submit `name` as the campaign `timeZone`. `displayName` and
  `displayLabel` are intended for customer-facing selectors.
</Note>