> For the complete documentation index, see [llms.txt](https://help.contouron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.contouron.com/features/content-calendar/timezone.md).

# Timezone

> For the complete documentation index, see [llms.txt](https://help.contouron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.contouron.com/features/content-calendar/timezone.md).

## Timezone

### What is the calendar timezone?

Contouron uses your computer's local timezone. The time shown in your computer's clock is the timezone used by Contouron to schedule posts.

You can check this by creating a test post scheduled 5 minutes from now.

***

### Scheduling via API or n8n

When you schedule posts through the API or n8n, Contouron does not know your local timezone. You must include the timezone offset in your timestamp.

Send the `scheduledTime` field as a full ISO-8601 string with a timezone offset:

```
2026-02-17T09:04:00-03:00
```

This tells Contouron: "publish at 9:04 AM in UTC-3 (e.g. Asuncion, Paraguay)."

If you send a timestamp without a timezone offset (for example, `2026-02-16 08:12`), Contouron treats it as UTC. If your local timezone is UTC-3, the post will publish 3 hours earlier than you intended.

#### Examples

| Goal                        | Correct format              |
| --------------------------- | --------------------------- |
| 9:00 AM in New York (UTC-5) | `2026-02-17T09:00:00-05:00` |
| 9:00 AM in London (UTC+0)   | `2026-02-17T09:00:00+00:00` |
| 9:00 AM in Berlin (UTC+1)   | `2026-02-17T09:00:00+01:00` |
| 9:00 AM in Asuncion (UTC-3) | `2026-02-17T09:00:00-03:00` |

Alternatively, convert your local time to UTC and append `Z`:

```
2026-02-17T12:04:00Z
```

#### Timezone in n8n + Google Sheets

If your scheduled time comes from a Google Sheet, it often has no timezone attached. Use an n8n "Date & Time" node to convert the value to ISO-8601 with the correct offset before passing it to the Contouron "Create Post" node.


---

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