> For the complete documentation index, see [llms.txt](https://developers.pipelinersales.com/api-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.pipelinersales.com/api-docs/core-api-concepts/dates.md).

# Dates

### Dates in Coevera

All dates are stored in the **UTC** timezone. Data are formatted by standard `ISO 8601`

Example of Date value: `2019-02-01 07:41:49.529970+00:00`

{% hint style="info" %}
If you include Timezone in the request header, Coevera will automatically convert dates to the specified timezone. For Timezones Coevera uses a uniform [**naming convention**](https://en.wikipedia.org/wiki/Tz_database). 

Header Example: **Timezone: America/Chicago** 
{% endhint %}

### Dates sent to Coevera

Dates sent to Coevera should be converted into the UTC timezone.